diff --git a/StructureHelper/App.xaml b/StructureHelper/App.xaml
index 9d626e4..df63f54 100644
--- a/StructureHelper/App.xaml
+++ b/StructureHelper/App.xaml
@@ -15,6 +15,7 @@
                 <ResourceDictionary Source="Infrastructure/UI/Resources/ShapeEditTemplates.xaml"/>
                 <ResourceDictionary Source="Infrastructure/UI/Resources/PrimitiveToolTips.xaml"/>
                 <ResourceDictionary Source="Infrastructure/UI/Resources/ITemEditPanels.xaml"/>
+                <ResourceDictionary Source="Infrastructure/UI/Resources/ForceTemplates.xaml"/>
             </ResourceDictionary.MergedDictionaries>
         </ResourceDictionary>
     </Application.Resources>
diff --git a/StructureHelper/Infrastructure/Enums/ActionType.cs b/StructureHelper/Infrastructure/Enums/ActionType.cs
new file mode 100644
index 0000000..3a81918
--- /dev/null
+++ b/StructureHelper/Infrastructure/Enums/ActionType.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelper.Infrastructure.Enums
+{
+    public enum ActionType
+    {
+        ForceCombination,
+        ForceCombinationByFactor
+    }
+}
diff --git a/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveBase.cs b/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveBase.cs
index c05f549..9017cc8 100644
--- a/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveBase.cs
+++ b/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveBase.cs
@@ -263,13 +263,13 @@ namespace StructureHelper.Infrastructure.UI.DataContexts
 
         public virtual INdmPrimitive GetNdmPrimitive()
         {
-            RefreshNdmPrimitive();
+            //RefreshNdmPrimitive();
             return primitive;
         }
 
-        public virtual void RefreshNdmPrimitive()
-        {
-        }
+        //public virtual void RefreshNdmPrimitive()
+        //{
+        //}
 
         public void RefreshColor()
         {
diff --git a/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveOperations.cs b/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveOperations.cs
index 719c60c..74f5b55 100644
--- a/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveOperations.cs
+++ b/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveOperations.cs
@@ -17,26 +17,37 @@ namespace StructureHelper.Infrastructure.UI.DataContexts
         public static ObservableCollection<PrimitiveBase> ConvertNdmPrimitivesToPrimitiveBase(IEnumerable<INdmPrimitive> primitives)
         {
             ObservableCollection<PrimitiveBase> viewItems = new ObservableCollection<PrimitiveBase>();
-            foreach (var item in primitives)
+            foreach (var primitive in primitives)
             {
-                if (item is IRectanglePrimitive)
-                {
-                    var rect = item as IRectanglePrimitive;
-                    viewItems.Add(new RectangleViewPrimitive(rect));
-                }
-                else if (item is ICirclePrimitive)
-                {
-                    var circle = item as ICirclePrimitive;
-                    viewItems.Add(new CircleViewPrimitive(circle));
-                }
-                else if (item is IPointPrimitive)
-                {
-                    var point = item as IPointPrimitive;
-                    viewItems.Add(new PointViewPrimitive(point));
-                }
-                else throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknown);
+                viewItems.Add(ConvertNdmPrimitiveToPrimitiveBase(primitive));
             }
             return viewItems;
         }
+        public static PrimitiveBase ConvertNdmPrimitiveToPrimitiveBase(INdmPrimitive primitive)
+        {
+            PrimitiveBase viewItem;
+            if (primitive is IRectanglePrimitive)
+            {
+                var rect = primitive as IRectanglePrimitive;
+                viewItem = new RectangleViewPrimitive(rect);
+            }
+            else if (primitive is ICirclePrimitive)
+            {
+                var circle = primitive as ICirclePrimitive;
+                viewItem = new CircleViewPrimitive(circle);
+            }
+            else if (primitive is IPointPrimitive & primitive is not ReinforcementPrimitive)
+            {
+                var point = primitive as IPointPrimitive;
+                viewItem = new PointViewPrimitive(point);
+            }
+            else if (primitive is ReinforcementPrimitive)
+            {
+                var point = primitive as ReinforcementPrimitive;
+                viewItem = new ReinforcementViewPrimitive(point);
+            }
+            else throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknown + $". Actual type: {primitive.GetType()}");
+            return viewItem;
+        }
     }
 }
diff --git a/StructureHelper/Infrastructure/UI/DataContexts/ReinforcementViewPrimitive.cs b/StructureHelper/Infrastructure/UI/DataContexts/ReinforcementViewPrimitive.cs
index 72c467b..e7b7fb2 100644
--- a/StructureHelper/Infrastructure/UI/DataContexts/ReinforcementViewPrimitive.cs
+++ b/StructureHelper/Infrastructure/UI/DataContexts/ReinforcementViewPrimitive.cs
@@ -7,10 +7,23 @@ using System.Threading.Tasks;
 
 namespace StructureHelper.Infrastructure.UI.DataContexts
 {
-    internal class ReinforcementViewPrimitive : PointViewPrimitive
+    public class ReinforcementViewPrimitive : PointViewPrimitive, IHasSurroundingPrimitive
     {
-        public ReinforcementViewPrimitive(IPointPrimitive _primitive) : base(_primitive)
+        ReinforcementPrimitive primitive;
+
+        public INdmPrimitive SurroundingPrimitive
         {
+            get => primitive.SurroundingPrimitive;
+            set
+            {
+                primitive.SurroundingPrimitive = value;
+                OnPropertyChanged(nameof(SurroundingPrimitive));
+            }
+        }
+
+        public ReinforcementViewPrimitive(ReinforcementPrimitive _primitive) : base(_primitive)
+        {
+            primitive = _primitive;
         }
     }
 }
diff --git a/StructureHelper/Infrastructure/UI/Resources/ForceTemplates.xaml b/StructureHelper/Infrastructure/UI/Resources/ForceTemplates.xaml
new file mode 100644
index 0000000..39c13cf
--- /dev/null
+++ b/StructureHelper/Infrastructure/UI/Resources/ForceTemplates.xaml
@@ -0,0 +1,47 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <DataTemplate x:Key="ForceActionTemplate">
+        <Grid>
+            <Grid.RowDefinitions>
+                <RowDefinition/>
+                <RowDefinition/>
+                <RowDefinition/>
+                <RowDefinition/>
+            </Grid.RowDefinitions>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="200"/>
+                <ColumnDefinition Width="*"/>
+            </Grid.ColumnDefinitions>
+            <TextBlock Text="Name"/>
+            <TextBox Grid.Column="1" Text="{Binding Name}"/>
+            <TextBlock Grid.Row="1" Text="Set force into initial Gravity Center"/>
+            <CheckBox Grid.Row="1" Grid.Column="1" Margin="3,5,3,5" IsChecked="{Binding SetInGravityCenter}"/>
+            <TextBlock Grid.Row="2" Text="Center X"/>
+            <TextBox Grid.Row="2" Grid.Column="1" Text="{Binding CenterX}" IsEnabled="{Binding CoordEnable}"/>
+            <TextBlock Grid.Row="3" Text="Center Y"/>
+            <TextBox Grid.Row="3" Grid.Column="1" Text="{Binding CenterY}" IsEnabled="{Binding CoordEnable}"/>
+        </Grid>
+    </DataTemplate>
+    <DataTemplate x:Key="CombinationListTemplate">
+        <Grid Grid.Row="1" DataContext="{Binding DesignForces}">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition/>
+                <ColumnDefinition Width="80"/>
+            </Grid.ColumnDefinitions>
+            <DataGrid x:Name="ForceGrid" Style="{StaticResource ItemsDataGrid}">
+                <DataGrid.Columns>
+                    <DataGridComboBoxColumn Header="Limit state" Width="80" MinWidth="70" SelectedItemBinding="{Binding LimitState}" ItemsSource="{Binding Source={StaticResource LimitStateEnum}}"/>
+                    <DataGridComboBoxColumn Header="Duration" Width="80" MinWidth="70" SelectedItemBinding="{Binding CalcTerm}" ItemsSource="{Binding Source={StaticResource CalcTermEnum}}"/>
+                    <DataGridTextColumn Header="Moment Mx" Width="85" Binding="{Binding ForceTuple.Mx, Converter={StaticResource MomentConverter}, ValidatesOnExceptions=True}"/>
+                    <DataGridTextColumn Header="Moment My" Width="85" Binding="{Binding ForceTuple.My, Converter={StaticResource MomentConverter}, ValidatesOnExceptions=True}"/>
+                    <DataGridTextColumn Header="Force Nz" Width="85" Binding="{Binding ForceTuple.Nz, Converter={StaticResource ForceConverter}, ValidatesOnExceptions=True}"/>
+                </DataGrid.Columns>
+            </DataGrid>
+            <StackPanel Grid.Column="1">
+                <Button Style="{StaticResource AddButton}"/>
+                <Button Style="{StaticResource DeleteButton}"/>
+                <Button Style="{StaticResource CopyButton}"/>
+            </StackPanel>
+        </Grid>
+    </DataTemplate>
+</ResourceDictionary>
\ No newline at end of file
diff --git a/StructureHelper/StructureHelper.csproj.user b/StructureHelper/StructureHelper.csproj.user
index bb58652..3098e55 100644
--- a/StructureHelper/StructureHelper.csproj.user
+++ b/StructureHelper/StructureHelper.csproj.user
@@ -9,6 +9,9 @@
     </ApplicationDefinition>
   </ItemGroup>
   <ItemGroup>
+    <Compile Update="Windows\Forces\ForceCombinationByFactorView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
     <Compile Update="Windows\MainWindow\AboutView.xaml.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -17,6 +20,12 @@
     </Compile>
   </ItemGroup>
   <ItemGroup>
+    <Page Update="Infrastructure\UI\Resources\ForceTemplates.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Windows\Forces\ForceCombinationByFactorView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
     <Page Update="Windows\MainWindow\AboutView.xaml">
       <SubType>Designer</SubType>
     </Page>
diff --git a/StructureHelper/Windows/Forces/ForceCombinationByFactorView.xaml b/StructureHelper/Windows/Forces/ForceCombinationByFactorView.xaml
new file mode 100644
index 0000000..df27e40
--- /dev/null
+++ b/StructureHelper/Windows/Forces/ForceCombinationByFactorView.xaml
@@ -0,0 +1,53 @@
+<Window x:Class="StructureHelper.Windows.Forces.ForceCombinationByFactorView"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:StructureHelper.Windows.Forces"
+        xmlns:vm="clr-namespace:StructureHelper.Windows.ViewModels.Forces"
+        d:DataContext="{d:DesignInstance vm:ForceCombinationByFactorVM}"
+        mc:Ignorable="d"
+        Title="Force Combination By Factor" Height="250" Width="350" WindowStartupLocation="CenterScreen" ResizeMode="NoResize">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="95"/>
+            <RowDefinition/>
+        </Grid.RowDefinitions>
+        <!--ForceTemplates.xaml-->
+        <ContentControl ContentTemplate="{StaticResource ResourceKey=ForceActionTemplate}" Content="{Binding}"/>
+        <StackPanel Grid.Row="1">
+            <TextBlock Text="Full service load combination"/>
+            <Grid DataContext="{Binding ForceTupleVM}">
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="25"/>
+                    <RowDefinition Height="25"/>
+                </Grid.RowDefinitions>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition/>
+                    <ColumnDefinition/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+                <TextBlock HorizontalAlignment="Center" Text="Mx" />
+                <TextBlock Grid.Column="1" HorizontalAlignment="Center" Text="My" />
+                <TextBlock Grid.Column="2" HorizontalAlignment="Center" Text="Nz" />
+                <TextBox Grid.Row="1" Text="{Binding Mx, Converter={StaticResource MomentConverter}, ValidatesOnExceptions=True}"/>
+                <TextBox Grid.Row="1" Grid.Column="1" Text="{Binding My, Converter={StaticResource MomentConverter}, ValidatesOnExceptions=True}"/>
+                <TextBox Grid.Row="1" Grid.Column="2" Text="{Binding Nz, Converter={StaticResource ForceConverter}, ValidatesOnExceptions=True}"/>
+            </Grid>
+            <Grid>
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="25"/>
+                    <RowDefinition Height="25"/>
+                </Grid.RowDefinitions>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+                <TextBlock Text="Long Term factor"/>
+                <TextBox Grid.Column="1" Text="{Binding LongTermFactor, Converter={StaticResource PlainDouble}, ValidatesOnExceptions=True}"/>
+                <TextBlock Grid.Row="1" Text="ULS Safety Factor"/>
+                <TextBox Grid.Row="1" Grid.Column="1" Text="{Binding ULSFactor, Converter={StaticResource PlainDouble}, ValidatesOnExceptions=True}"/>
+            </Grid>
+        </StackPanel>
+    </Grid>
+</Window>
diff --git a/StructureHelper/Windows/Forces/ForceCombinationByFactorView.xaml.cs b/StructureHelper/Windows/Forces/ForceCombinationByFactorView.xaml.cs
new file mode 100644
index 0000000..798ced7
--- /dev/null
+++ b/StructureHelper/Windows/Forces/ForceCombinationByFactorView.xaml.cs
@@ -0,0 +1,32 @@
+using StructureHelper.Windows.ViewModels.Forces;
+using StructureHelperCommon.Models.Forces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace StructureHelper.Windows.Forces
+{
+    /// <summary>
+    /// Логика взаимодействия для ForceCombinationByFactor.xaml
+    /// </summary>
+    public partial class ForceCombinationByFactorView : Window
+    {
+        ForceCombinationByFactorVM viewModel;
+        public ForceCombinationByFactorView(IForceCombinationByFactor forceCombination)
+        {
+            InitializeComponent();
+            viewModel = new ForceCombinationByFactorVM(forceCombination);
+            DataContext = viewModel;
+        }
+    }
+}
diff --git a/StructureHelper/Windows/Forces/ForceCombinationView.xaml b/StructureHelper/Windows/Forces/ForceCombinationView.xaml
index 9a0081c..f914571 100644
--- a/StructureHelper/Windows/Forces/ForceCombinationView.xaml
+++ b/StructureHelper/Windows/Forces/ForceCombinationView.xaml
@@ -9,56 +9,14 @@
         mc:Ignorable="d"
         Title="Force Combination" Height="250" Width="550" MinHeight="300" MinWidth="450" MaxWidth="500" WindowStartupLocation="CenterScreen">
     <Window.Resources>
-        <DataTemplate x:Key="ForceTemplate">
-            
-        </DataTemplate>
     </Window.Resources>
     <Grid>
         <Grid.RowDefinitions>
             <RowDefinition Height="95"/>
             <RowDefinition/>
         </Grid.RowDefinitions>
-        <StackPanel>
-            <Grid>
-                <Grid.RowDefinitions>
-                    <RowDefinition/>
-                    <RowDefinition/>
-                    <RowDefinition/>
-                    <RowDefinition/>
-                </Grid.RowDefinitions>
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="200"/>
-                    <ColumnDefinition Width="*"/>
-                </Grid.ColumnDefinitions>
-                <TextBlock Text="Name"/>
-                <TextBox Grid.Column="1" Text="{Binding Name}"/>
-                <TextBlock Grid.Row="1" Text="Set force into initial Gravity Center"/>
-                <CheckBox Grid.Row="1" Grid.Column="1" Margin="3,5,3,5" IsChecked="{Binding SetInGravityCenter}"/>
-                <TextBlock Grid.Row="2" Text="Center X"/>
-                <TextBox Grid.Row="2" Grid.Column="1" Text="{Binding CenterX}" IsEnabled="{Binding CoordEnable}"/>
-                <TextBlock Grid.Row="3" Text="Center Y"/>
-                <TextBox Grid.Row="3" Grid.Column="1" Text="{Binding CenterY}" IsEnabled="{Binding CoordEnable}"/>
-            </Grid>
-        </StackPanel>
-        <Grid Grid.Row="1" DataContext="{Binding DesignForces}">
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition/>
-                <ColumnDefinition Width="80"/>
-            </Grid.ColumnDefinitions>
-            <DataGrid x:Name="ForceGrid" Style="{StaticResource ItemsDataGrid}">
-                <DataGrid.Columns>
-                    <DataGridComboBoxColumn Header="Limit state" Width="80" MinWidth="70" SelectedItemBinding="{Binding LimitState}" ItemsSource="{Binding Source={StaticResource LimitStateEnum}}"/>
-                    <DataGridComboBoxColumn Header="Duration" Width="80" MinWidth="70" SelectedItemBinding="{Binding CalcTerm}" ItemsSource="{Binding Source={StaticResource CalcTermEnum}}"/>
-                    <DataGridTextColumn Header="Moment Mx" Width="85" Binding="{Binding ForceTuple.Mx, Converter={StaticResource MomentConverter}, ValidatesOnExceptions=True}"/>
-                    <DataGridTextColumn Header="Moment My" Width="85" Binding="{Binding ForceTuple.My, Converter={StaticResource MomentConverter}, ValidatesOnExceptions=True}"/>
-                    <DataGridTextColumn Header="Force Nz" Width="85" Binding="{Binding ForceTuple.Nz, Converter={StaticResource ForceConverter}, ValidatesOnExceptions=True}"/>
-                </DataGrid.Columns>
-            </DataGrid>
-            <StackPanel Grid.Column="1">
-                <Button Style="{StaticResource AddButton}"/>
-                <Button Style="{StaticResource DeleteButton}"/>
-                <Button Style="{StaticResource CopyButton}"/>
-            </StackPanel>
-        </Grid>
+        <!--ForceTemplates.xaml-->
+        <ContentControl ContentTemplate="{StaticResource ResourceKey=ForceActionTemplate}" Content="{Binding}"/>
+        <ContentControl Grid.Row="1" ContentTemplate="{StaticResource ResourceKey=CombinationListTemplate}" Content="{Binding}"/>
     </Grid>
 </Window>
diff --git a/StructureHelper/Windows/MainWindow/MainView.xaml b/StructureHelper/Windows/MainWindow/MainView.xaml
index 3c656b2..d89a968 100644
--- a/StructureHelper/Windows/MainWindow/MainView.xaml
+++ b/StructureHelper/Windows/MainWindow/MainView.xaml
@@ -75,7 +75,10 @@
                     <Expander Header="Actions" MinWidth="20" DataContext="{Binding CombinationsLogic}">
                         <Expander.ContextMenu>
                             <ContextMenu>
-                                <Button Content="Add Force Combination" Command="{Binding Add}"/>
+                                <MenuItem Header="Add">
+                                    <Button Content="Combination" Command="{Binding Add}" CommandParameter="{x:Static enums:ActionType.ForceCombination}"/>
+                                    <Button Content="Combination By Factors" Command="{Binding Add}" CommandParameter="{x:Static enums:ActionType.ForceCombinationByFactor}"/>
+                                </MenuItem>
                             </ContextMenu>
                         </Expander.ContextMenu>
                         <ListBox ItemsSource="{Binding Items}" SelectedItem="{Binding SelectedItem}">
diff --git a/StructureHelper/Windows/MainWindow/MainViewModel.cs b/StructureHelper/Windows/MainWindow/MainViewModel.cs
index 38b867b..6f8bb3b 100644
--- a/StructureHelper/Windows/MainWindow/MainViewModel.cs
+++ b/StructureHelper/Windows/MainWindow/MainViewModel.cs
@@ -42,7 +42,7 @@ namespace StructureHelper.Windows.MainWindow
         private readonly AnalysisVewModelLogic calculatorsLogic;
         public AnalysisVewModelLogic CalculatorsLogic { get => calculatorsLogic;}
         public ActionsViewModel CombinationsLogic { get => combinationsLogic; }
-        public IPrimitiveViewModelLogic PrimitiveLogic => primitiveLogic;
+        public PrimitiveViewModelLogic PrimitiveLogic => primitiveLogic;
         public HelpLogic HelpLogic => new HelpLogic();
 
         private MainModel Model { get; }
@@ -214,7 +214,7 @@ namespace StructureHelper.Windows.MainWindow
 
         private double delta = 0.0005;
         private ActionsViewModel combinationsLogic;
-        private IPrimitiveViewModelLogic primitiveLogic;
+        private PrimitiveViewModelLogic primitiveLogic;
         private RelayCommand showVisualProperty;
         private RelayCommand selectPrimitive;
 
@@ -225,7 +225,7 @@ namespace StructureHelper.Windows.MainWindow
             section = model.Section;
             combinationsLogic = new ActionsViewModel(repository);
             calculatorsLogic = new AnalysisVewModelLogic(repository);
-            primitiveLogic = new PrimitiveViewModelLogic(repository) { CanvasWidth = CanvasWidth, CanvasHeight = CanvasHeight };
+            primitiveLogic = new PrimitiveViewModelLogic(section) { CanvasWidth = CanvasWidth, CanvasHeight = CanvasHeight };
             XX2 = CanvasWidth;
             XY1 = CanvasHeight / 2d;
             YX1 = CanvasWidth / 2d;
@@ -342,11 +342,6 @@ namespace StructureHelper.Windows.MainWindow
             }
         }
 
-        private bool CheckAnalisysOptions()
-        {
-            if (CheckMaterials() == false) { return false; }
-            return true;
-        }
         private bool CheckMaterials()
         {
             foreach (var item in primitiveLogic.Items)
@@ -405,10 +400,10 @@ namespace StructureHelper.Windows.MainWindow
                 var newRepository = newSection.SectionRepository;
                 repository.HeadMaterials.AddRange(newRepository.HeadMaterials);
                 repository.Primitives.AddRange(newRepository.Primitives);
-                repository.ForceCombinationLists.AddRange(newRepository.ForceCombinationLists);
+                repository.ForceActions.AddRange(newRepository.ForceActions);
                 repository.CalculatorsList.AddRange(newRepository.CalculatorsList);
                 OnPropertyChanged(nameof(HeadMaterials));
-                CombinationsLogic.AddItems(newRepository.ForceCombinationLists);
+                CombinationsLogic.AddItems(newRepository.ForceActions);
                 CalculatorsLogic.AddItems(newRepository.CalculatorsList);
                 var primitives = PrimitiveOperations.ConvertNdmPrimitivesToPrimitiveBase(newRepository.Primitives);
                 foreach (var item in primitives)
diff --git a/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml
index 349d26e..52bd207 100644
--- a/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml
+++ b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml
@@ -68,7 +68,7 @@
                     <ColumnDefinition/>
                 </Grid.ColumnDefinitions>
                 <TextBlock Grid.Row="0" Text="Inside of"/>
-                <ComboBox Grid.Row="1" Grid.Column="1" ItemsSource="{Binding HeadMaterials}" SelectedItem="{Binding PrimitiveMaterial}">
+                <ComboBox Grid.Row="1" Grid.Column="1" ItemsSource="{Binding SurroundingPrimitives}" SelectedItem="{Binding SurroundingPrimitive}">
                     <ComboBox.ItemTemplate>
                         <DataTemplate>
                             <Grid>
diff --git a/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml.cs b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml.cs
index b7181ac..8228051 100644
--- a/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml.cs
+++ b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml.cs
@@ -2,6 +2,7 @@
 using StructureHelper.Infrastructure.UI.DataContexts;
 using StructureHelper.Models.Materials;
 using StructureHelper.Windows.ViewModels.PrimitiveProperties;
+using StructureHelperLogics.Models.CrossSections;
 using StructureHelperLogics.Models.Materials;
 using System;
 using System.Collections.Generic;
@@ -29,10 +30,10 @@ namespace StructureHelper.Windows.PrimitiveProperiesWindow
     {
         PrimitiveBase primitive;
         private PrimitivePropertiesViewModel viewModel;
-        public PrimitivePropertiesView(PrimitiveBase primitive, IHasHeadMaterials headMaterials)
+        public PrimitivePropertiesView(PrimitiveBase primitive, ICrossSectionRepository sectionRepository)
         {
             this.primitive = primitive;
-            viewModel = new PrimitivePropertiesViewModel(this.primitive, headMaterials);
+            viewModel = new PrimitivePropertiesViewModel(this.primitive, sectionRepository);
             this.DataContext = viewModel;
             InitializeComponent();
             if (primitive is RectangleViewPrimitive) { AddPrimitiveProperties(PrimitiveType.Rectangle); }
@@ -42,13 +43,13 @@ namespace StructureHelper.Windows.PrimitiveProperiesWindow
         }
         private void AddPrimitiveProperties(PrimitiveType type)
         {
-            List<string> names = new List<string>();
-            if (primitive.DivisionViewModel is not null) { names.Add("TriangulationProperties");}
-            if (primitive is RectangleViewPrimitive) { names.Add("RectangleProperties"); }
-            if (primitive is CircleViewPrimitive) { names.Add("CircleProperties"); }
-            if (primitive is PointViewPrimitive) { names.Add("PointProperties"); }
-            if (primitive is ReinforcementViewPrimitive) { names.Add("ReinforcementProperties"); }
-            foreach (var name in names)
+            List<string> templateNames = new List<string>();
+            if (primitive.DivisionViewModel is not null) { templateNames.Add("TriangulationProperties");}
+            if (primitive is RectangleViewPrimitive) { templateNames.Add("RectangleProperties"); }
+            if (primitive is CircleViewPrimitive) { templateNames.Add("CircleProperties"); }
+            if (primitive is PointViewPrimitive) { templateNames.Add("PointProperties"); }
+            if (primitive is ReinforcementViewPrimitive) { templateNames.Add("ReinforcementProperties"); }
+            foreach (var name in templateNames)
             {
                 ContentControl contentControl = new ContentControl();
                 contentControl.SetResourceReference(ContentTemplateProperty, name);
diff --git a/StructureHelper/Windows/ViewModels/Calculations/Calculators/ForceCalculatorViewModel.cs b/StructureHelper/Windows/ViewModels/Calculations/Calculators/ForceCalculatorViewModel.cs
index 6551470..9ecadf6 100644
--- a/StructureHelper/Windows/ViewModels/Calculations/Calculators/ForceCalculatorViewModel.cs
+++ b/StructureHelper/Windows/ViewModels/Calculations/Calculators/ForceCalculatorViewModel.cs
@@ -24,7 +24,7 @@ namespace StructureHelper.Windows.ViewModels.Calculations.Calculators
     public class ForceCalculatorViewModel : ViewModelBase
     {
         IEnumerable<INdmPrimitive> allowedPrimitives;
-        IEnumerable<IForceCombinationList> allowedForceCombinations;
+        IEnumerable<IForceAction> allowedForceCombinations;
         ForceCalculator forcesCalculator;
         SecondOrderViewModel secondOrderViewModel;
 
@@ -53,7 +53,7 @@ namespace StructureHelper.Windows.ViewModels.Calculations.Calculators
         public bool ShortTerm { get; set; }
         public bool LongTerm { get; set; }
 
-        public ISourceToTargetViewModel<IForceCombinationList> CombinationViewModel { get; }
+        public ISourceToTargetViewModel<IForceAction> CombinationViewModel { get; }
         public ISourceToTargetViewModel<PrimitiveBase> PrimitivesViewModel { get; }
 
         public PrimitiveBase SelectedAllowedPrimitive { get; set; }
@@ -146,15 +146,15 @@ namespace StructureHelper.Windows.ViewModels.Calculations.Calculators
             }
         }
 
-        public ForceCalculatorViewModel(IEnumerable<INdmPrimitive> _allowedPrimitives, IEnumerable<IForceCombinationList> _allowedForceCombinations, ForceCalculator _forcesCalculator)
+        public ForceCalculatorViewModel(IEnumerable<INdmPrimitive> _allowedPrimitives, IEnumerable<IForceAction> _allowedForceCombinations, ForceCalculator _forcesCalculator)
         {
             allowedPrimitives = _allowedPrimitives;
             allowedForceCombinations = _allowedForceCombinations;
             forcesCalculator = _forcesCalculator;
             secondOrderViewModel = new SecondOrderViewModel(forcesCalculator.CompressedMember);
 
-            CombinationViewModel = new SourceToTargetViewModel<IForceCombinationList>();
-            CombinationViewModel.SetTargetItems(forcesCalculator.ForceCombinationLists);
+            CombinationViewModel = new SourceToTargetViewModel<IForceAction>();
+            CombinationViewModel.SetTargetItems(forcesCalculator.ForceActions);
             CombinationViewModel.SetSourceItems(allowedForceCombinations);
             CombinationViewModel.ItemDataDemplate = Application.Current.Resources["SimpleItemTemplate"] as DataTemplate;
 
@@ -180,10 +180,10 @@ namespace StructureHelper.Windows.ViewModels.Calculations.Calculators
         public void Refresh()
         {
             var combinations = CombinationViewModel.GetTargetItems();
-            forcesCalculator.ForceCombinationLists.Clear();
+            forcesCalculator.ForceActions.Clear();
             foreach (var item in combinations)
             {
-                forcesCalculator.ForceCombinationLists.Add(item);
+                forcesCalculator.ForceActions.Add(item);
             }
             forcesCalculator.Primitives.Clear();
             foreach (var item in PrimitivesViewModel.GetTargetItems())
diff --git a/StructureHelper/Windows/ViewModels/Forces/ActionsViewModel.cs b/StructureHelper/Windows/ViewModels/Forces/ActionsViewModel.cs
index a6ac6f4..46dc5cf 100644
--- a/StructureHelper/Windows/ViewModels/Forces/ActionsViewModel.cs
+++ b/StructureHelper/Windows/ViewModels/Forces/ActionsViewModel.cs
@@ -1,4 +1,7 @@
-using StructureHelper.Windows.Forces;
+using StructureHelper.Infrastructure.Enums;
+using StructureHelper.Windows.Forces;
+using StructureHelperCommon.Infrastructures.Exceptions;
+using StructureHelperCommon.Infrastructures.Strings;
 using StructureHelperCommon.Models.Forces;
 using StructureHelperLogics.Models.CrossSections;
 using StructureHelperLogics.NdmCalculations.Analyses.ByForces;
@@ -11,14 +14,27 @@ using System.Windows.Forms;
 
 namespace StructureHelper.Windows.ViewModels.Forces
 {
-    public class ActionsViewModel : CRUDViewModelBase<IForceCombinationList>
+    public class ActionsViewModel : CRUDViewModelBase<IForceAction>
     {
         ICrossSectionRepository repository;
 
         public override void AddMethod(object parameter)
         {
-            NewItem = new ForceCombinationList() { Name = "New Force Combination" };
-            base.AddMethod(parameter);
+            if (parameter is not null)
+            {
+                ActionType paramType = (ActionType)parameter;
+                if (paramType == ActionType.ForceCombination)
+                {
+                    NewItem = new ForceCombinationList() { Name = "New Force Combination" };
+                }
+                else if (paramType == ActionType.ForceCombinationByFactor)
+                {
+                    NewItem = new ForceCombinationByFactor() { Name = "New Factored Combination" };
+                }
+                else throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknown + $": Actual type: {nameof(paramType)}");    
+                base.AddMethod(parameter);
+            }
+
         }
 
         public override void DeleteMethod(object parameter)
@@ -32,11 +48,11 @@ namespace StructureHelper.Windows.ViewModels.Forces
                     if (item is IForceCalculator)
                     {
                         var forceCalculator = item as IForceCalculator;
-                        var containSelected = forceCalculator.ForceCombinationLists.Contains(SelectedItem);
+                        var containSelected = forceCalculator.ForceActions.Contains(SelectedItem);
                         if (containSelected)
                         {
                             var dialogResultCalc = MessageBox.Show($"Action is contained in calculator {item.Name}", "Please, confirm deleting", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
-                            if (dialogResultCalc == DialogResult.OK) { forceCalculator.ForceCombinationLists.Remove(SelectedItem); }
+                            if (dialogResultCalc == DialogResult.OK) { forceCalculator.ForceActions.Remove(SelectedItem); }
                             else return;
                         }
                     }
@@ -47,12 +63,23 @@ namespace StructureHelper.Windows.ViewModels.Forces
 
         public override void EditMethod(object parameter)
         {
-            var wnd = new ForceCombinationView(SelectedItem);
+            System.Windows.Window wnd;
+            if (SelectedItem is IForceCombinationList)
+            {
+                var item = (IForceCombinationList)SelectedItem;
+                wnd = new ForceCombinationView(item);
+            }
+            else if (SelectedItem is IForceCombinationByFactor)
+            {
+                var item = (IForceCombinationByFactor)SelectedItem;
+                wnd = new ForceCombinationByFactorView(item);
+            }
+            else throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknown + $"actual object type: {nameof(SelectedItem)}");
             wnd.ShowDialog();
             base.EditMethod(parameter);
         }
 
-        public ActionsViewModel(ICrossSectionRepository repository) : base (repository.ForceCombinationLists)
+        public ActionsViewModel(ICrossSectionRepository repository) : base (repository.ForceActions)
         {
             this.repository = repository;
         }
diff --git a/StructureHelper/Windows/ViewModels/Forces/ForceActionVMBase.cs b/StructureHelper/Windows/ViewModels/Forces/ForceActionVMBase.cs
new file mode 100644
index 0000000..a069742
--- /dev/null
+++ b/StructureHelper/Windows/ViewModels/Forces/ForceActionVMBase.cs
@@ -0,0 +1,61 @@
+using StructureHelper.Infrastructure;
+using StructureHelperCommon.Models.Forces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelper.Windows.ViewModels.Forces
+{
+    public abstract class ForceActionVMBase : ViewModelBase
+    {
+        IForceAction forceAction;
+
+        public string Name
+        {
+            get => forceAction.Name;
+            set
+            {
+                forceAction.Name = value;
+            }
+        }
+
+        public bool SetInGravityCenter
+        {
+            get => forceAction.SetInGravityCenter;
+            set
+            {
+                forceAction.SetInGravityCenter = value;
+                OnPropertyChanged(nameof(SetInGravityCenter));
+                OnPropertyChanged(nameof(CoordEnable));
+            }
+        }
+
+        public bool CoordEnable => !SetInGravityCenter;
+
+        public double CenterX
+        {
+            get => forceAction.ForcePoint.X;
+            set
+            {
+                forceAction.ForcePoint.X = value;
+                OnPropertyChanged(nameof(CenterX));
+            }
+        }
+
+        public double CenterY
+        {
+            get => forceAction.ForcePoint.Y;
+            set
+            {
+                forceAction.ForcePoint.Y = value;
+                OnPropertyChanged(nameof(CenterY));
+            }
+        }
+        public ForceActionVMBase(IForceAction forceAction)
+        {
+            this.forceAction = forceAction;
+        }
+    }
+}
diff --git a/StructureHelper/Windows/ViewModels/Forces/ForceCombinationByFactorVM.cs b/StructureHelper/Windows/ViewModels/Forces/ForceCombinationByFactorVM.cs
new file mode 100644
index 0000000..3d337e8
--- /dev/null
+++ b/StructureHelper/Windows/ViewModels/Forces/ForceCombinationByFactorVM.cs
@@ -0,0 +1,73 @@
+using StructureHelperCommon.Models.Forces;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Media.Media3D;
+
+namespace StructureHelper.Windows.ViewModels.Forces
+{
+    public class ForceCombinationByFactorVM : ForceActionVMBase, IDataErrorInfo
+    {
+        IForceCombinationByFactor forceAction;
+        ForceTupleVM forceTupleVM;
+
+        public double ULSFactor
+        {
+            get => forceAction.ULSFactor;
+            set
+            {
+                forceAction.ULSFactor = value;
+                OnPropertyChanged(nameof(ULSFactor));
+            }
+        }
+
+        public ForceTupleVM ForceTupleVM => forceTupleVM;
+
+        public double LongTermFactor
+        {
+            get => forceAction.LongTermFactor;
+            set
+            {
+                if (value <0d) { value = 0d; }
+                if (value > 1d) { value = 1d; }
+                forceAction.LongTermFactor = value;
+                OnPropertyChanged(nameof(LongTermFactor));
+            }
+        }
+
+        public string Error => throw new NotImplementedException();
+
+        public string this[string columnName]
+        {
+            get
+            {
+                string error = null;
+
+                if (columnName == nameof(ULSFactor))
+                {
+                    if (ULSFactor <= 0)
+                    {
+                        error = "Safety factor for ULS must be greater than zero";
+                    }
+                }
+                if (columnName == nameof(LongTermFactor))
+                {
+                    if (LongTermFactor < 0d || LongTermFactor > 1d)
+                    {
+                        error = "Long term factor must be between 0.0 and 1.0";
+                    }
+                }
+                return error;
+            }
+        }
+
+        public ForceCombinationByFactorVM(IForceCombinationByFactor forceAction) : base(forceAction)
+        {
+            this.forceAction = forceAction;
+            forceTupleVM = new ForceTupleVM(forceAction.FullSLSForces);
+        }
+    }
+}
diff --git a/StructureHelper/Windows/ViewModels/Forces/ForceCombinationViewModel.cs b/StructureHelper/Windows/ViewModels/Forces/ForceCombinationViewModel.cs
index 94bf3f5..18ee18e 100644
--- a/StructureHelper/Windows/ViewModels/Forces/ForceCombinationViewModel.cs
+++ b/StructureHelper/Windows/ViewModels/Forces/ForceCombinationViewModel.cs
@@ -8,61 +8,15 @@ using System.Threading.Tasks;
 
 namespace StructureHelper.Windows.ViewModels.Forces
 {
-    public class ForceCombinationViewModel : ViewModelBase
+    public class ForceCombinationViewModel : ForceActionVMBase
     {
-        IForceCombinationList combinationList;
+        ForceTuplesViewModel designForces;
 
-        //public IDesignForceTuple SelectedTuple { get; set; }
-        public ForceTuplesViewModel DesignForces { get;}
+        public ForceTuplesViewModel DesignForces => designForces;
 
-        public string Name
+        public ForceCombinationViewModel(IForceCombinationList combinationList) : base(combinationList)
         {
-            get => combinationList.Name;
-            set
-            {
-                combinationList.Name = value;
-            }
-        }
-
-        public bool SetInGravityCenter
-        {
-            get => combinationList.SetInGravityCenter;
-            set
-            {
-                combinationList.SetInGravityCenter = value;
-                OnPropertyChanged(nameof(SetInGravityCenter));
-                OnPropertyChanged(nameof(CoordEnable));
-            }
-        }
-
-        public bool CoordEnable => !SetInGravityCenter;
-
-        public double CenterX
-        {
-            get => combinationList.ForcePoint.X;
-            set
-            {
-                combinationList.ForcePoint.X = value;
-                OnPropertyChanged(nameof(CenterX));
-            }
-        }
-
-        public double CenterY
-        {
-            get => combinationList.ForcePoint.Y;
-            set
-            {
-                combinationList.ForcePoint.Y = value;
-                OnPropertyChanged(nameof(CenterY));
-            }
-        }
-
-        //public IEnumerable<IDesignForceTuple>  ForceTuples { get => combinationList.DesignForces; }
-
-        public ForceCombinationViewModel(IForceCombinationList combinationList)
-        {
-            this.combinationList = combinationList;
-            DesignForces = new ForceTuplesViewModel(this.combinationList.DesignForces);
+            designForces = new ForceTuplesViewModel(combinationList.DesignForces);
         }
     }
 }
diff --git a/StructureHelper/Windows/ViewModels/Forces/ForceTupleVM.cs b/StructureHelper/Windows/ViewModels/Forces/ForceTupleVM.cs
new file mode 100644
index 0000000..027e91f
--- /dev/null
+++ b/StructureHelper/Windows/ViewModels/Forces/ForceTupleVM.cs
@@ -0,0 +1,73 @@
+using StructureHelper.Infrastructure;
+using StructureHelperCommon.Models.Forces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelper.Windows.ViewModels.Forces
+{
+    public class ForceTupleVM : ViewModelBase
+    {
+        IForceTuple forceTuple;
+        public double Mx
+        {
+            get => forceTuple.Mx;
+            set
+            {
+                forceTuple.Mx = value;
+                OnPropertyChanged(nameof(Mx));
+            }
+        }
+        public double My
+        {
+            get => forceTuple.My;
+            set
+            {
+                forceTuple.My = value;
+                OnPropertyChanged(nameof(My));
+            }
+        }
+        public double Nz
+        {
+            get => forceTuple.Nz;
+            set
+            {
+                forceTuple.Nz = value;
+                OnPropertyChanged(nameof(Nz));
+            }
+        }
+        public double Qx
+        {
+            get => forceTuple.Qx;
+            set
+            {
+                forceTuple.Qx = value;
+                OnPropertyChanged(nameof(Qx));
+            }
+        }
+        public double Qy
+        {
+            get => forceTuple.Qy;
+            set
+            {
+                forceTuple.Qy = value;
+                OnPropertyChanged(nameof(Qy));
+            }
+        }
+        public double Mz
+        {
+            get => forceTuple.Mz;
+            set
+            {
+                forceTuple.Mz = value;
+                OnPropertyChanged(nameof(Mz));
+            }
+        }
+        public ForceTupleVM(IForceTuple forceTuple)
+        {
+            this.forceTuple = forceTuple;
+        }
+    }
+}
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/AnalysisVewModelLogic.cs b/StructureHelper/Windows/ViewModels/NdmCrossSections/AnalysisVewModelLogic.cs
index 6a56ad6..14a51b6 100644
--- a/StructureHelper/Windows/ViewModels/NdmCrossSections/AnalysisVewModelLogic.cs
+++ b/StructureHelper/Windows/ViewModels/NdmCrossSections/AnalysisVewModelLogic.cs
@@ -30,7 +30,7 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
             if (SelectedItem is ForceCalculator)
             {
                 var calculator = SelectedItem as ForceCalculator;
-                var vm = new ForceCalculatorViewModel(repository.Primitives, repository.ForceCombinationLists, calculator);
+                var vm = new ForceCalculatorViewModel(repository.Primitives, repository.ForceActions, calculator);
 
                 var wnd = new ForceCalculatorView(vm);
                 wnd.ShowDialog();
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/ForceCombinationViewModelLogic.cs b/StructureHelper/Windows/ViewModels/NdmCrossSections/ForceCombinationViewModelLogic.cs
index 31af3a2..d360122 100644
--- a/StructureHelper/Windows/ViewModels/NdmCrossSections/ForceCombinationViewModelLogic.cs
+++ b/StructureHelper/Windows/ViewModels/NdmCrossSections/ForceCombinationViewModelLogic.cs
@@ -19,9 +19,9 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
     {
         private readonly ICrossSectionRepository repository;
 
-        public IForceCombinationList SelectedItem { get; set; }
+        public IForceAction SelectedItem { get; set; }
 
-        public ObservableCollection<IForceCombinationList> Items { get; private set; }
+        public ObservableCollection<IForceAction> Items { get; private set; }
 
         private RelayCommand addForceCombinationCommand;
         public RelayCommand Add
@@ -41,7 +41,7 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
         {
             var item = new ForceCombinationList() { Name = "New Force Combination" };
             Items.Add(item);
-            repository.ForceCombinationLists.Add(item);
+            repository.ForceActions.Add(item);
         }
         private RelayCommand deleteForceCombinationCommand;
         public RelayCommand Delete
@@ -62,7 +62,7 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
             var dialogResult = MessageBox.Show("Delete action?", "Please, confirm deleting", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
             if (dialogResult == DialogResult.Yes)
             {
-                repository.ForceCombinationLists.Remove(SelectedItem);
+                repository.ForceActions.Remove(SelectedItem);
             }
         }
         private RelayCommand editForceCombinationCommand;
@@ -78,7 +78,7 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
                     {
                         EditForceCombination();
                         Items.Clear();
-                        AddItems(repository.ForceCombinationLists);
+                        AddItems(repository.ForceActions);
                         OnPropertyChanged(nameof(Items));
                     }, o => SelectedItem != null));
             }
@@ -93,7 +93,7 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
                 copyCommand = new RelayCommand(o =>
                 {
                     var item = SelectedItem.Clone() as IForceCombinationList;
-                    repository.ForceCombinationLists.Add(item);
+                    repository.ForceActions.Add(item);
                     Items.Add(item);
                     OnPropertyChanged(nameof(Items));
                 }, o => SelectedItem != null));
@@ -102,11 +102,11 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
 
         private void EditForceCombination()
         {
-            var wnd = new ForceCombinationView(SelectedItem);
-            wnd.ShowDialog();
+            //var wnd = new ForceCombinationView(SelectedItem);
+            //wnd.ShowDialog();
         }
 
-        public void AddItems(IEnumerable<IForceCombinationList> items)
+        public void AddItems(IEnumerable<IForceAction> items)
         {
             foreach (var item in items)
             {
@@ -117,8 +117,8 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
         public ForceCombinationViewModelLogic(ICrossSectionRepository repository)
         { 
             this.repository = repository;
-            Items = new ObservableCollection<IForceCombinationList>();
-            AddItems(this.repository.ForceCombinationLists);
+            Items = new ObservableCollection<IForceAction>();
+            AddItems(this.repository.ForceActions);
         }
     }
 }
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/IForceCombinationViewModelLogic.cs b/StructureHelper/Windows/ViewModels/NdmCrossSections/IForceCombinationViewModelLogic.cs
index f122711..600f74c 100644
--- a/StructureHelper/Windows/ViewModels/NdmCrossSections/IForceCombinationViewModelLogic.cs
+++ b/StructureHelper/Windows/ViewModels/NdmCrossSections/IForceCombinationViewModelLogic.cs
@@ -8,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace StructureHelper.Windows.ViewModels.NdmCrossSections
 {
-    public interface IForceCombinationViewModelLogic : ICRUDViewModel<IForceCombinationList>
+    public interface IForceCombinationViewModelLogic : ICRUDViewModel<IForceAction>
     {
     }
 }
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/IPrimitiveViewModelLogic.cs b/StructureHelper/Windows/ViewModels/NdmCrossSections/IPrimitiveViewModelLogic.cs
deleted file mode 100644
index ae0638c..0000000
--- a/StructureHelper/Windows/ViewModels/NdmCrossSections/IPrimitiveViewModelLogic.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-using StructureHelper.Infrastructure;
-using StructureHelper.Infrastructure.UI.DataContexts;
-
-namespace StructureHelper.Windows.ViewModels.NdmCrossSections
-{
-    public interface IPrimitiveViewModelLogic : ICRUDViewModel<PrimitiveBase>
-    {
-        RelayCommand SetToFront { get; }
-        RelayCommand SetToBack { get; }
-        int PrimitivesCount { get; }
-        void Refresh();
-    }
-}
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/PrimitiveViewModelLogic.cs b/StructureHelper/Windows/ViewModels/NdmCrossSections/PrimitiveViewModelLogic.cs
index ba8fcdc..1e6c2fe 100644
--- a/StructureHelper/Windows/ViewModels/NdmCrossSections/PrimitiveViewModelLogic.cs
+++ b/StructureHelper/Windows/ViewModels/NdmCrossSections/PrimitiveViewModelLogic.cs
@@ -22,9 +22,10 @@ using StructureHelperLogics.NdmCalculations.Analyses.ByForces;
 
 namespace StructureHelper.Windows.ViewModels.NdmCrossSections
 {
-    public class PrimitiveViewModelLogic : ViewModelBase, IPrimitiveViewModelLogic
+    public class PrimitiveViewModelLogic : ViewModelBase, ICRUDViewModel<PrimitiveBase>
     {
-        private readonly ICrossSectionRepository repository;
+        private ICrossSection section;
+        private ICrossSectionRepository repository => section.SectionRepository;
         private RelayCommand addCommand;
         private RelayCommand deleteCommand;
         private RelayCommand editCommand;
@@ -99,6 +100,7 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
             else { throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknown + nameof(primitiveType)); }
             viewPrimitive.RegisterDeltas(CanvasWidth / 2, CanvasHeight / 2);
             repository.Primitives.Add(ndmPrimitive);
+            ndmPrimitive.CrossSection = section;
             Items.Add(viewPrimitive);
             OnPropertyChanged(nameof(Items));
             OnPropertyChanged(nameof(PrimitivesCount));
@@ -132,6 +134,14 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
                         forceCalc.Primitives.Remove(ndmPrimitive);
                     }
                 }
+                foreach (var primitive in repository.Primitives)
+                {
+                    if (primitive is IHasSurroundingPrimitive)
+                    {
+                        var sPrimitive = primitive as IHasSurroundingPrimitive;
+                        if (sPrimitive.SurroundingPrimitive == ndmPrimitive) { sPrimitive.SurroundingPrimitive = null; }
+                    }
+                }
                 Items.Remove(SelectedItem);
             }
             OnPropertyChanged(nameof(Items));
@@ -243,9 +253,9 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
             OnPropertyChanged(nameof(PrimitivesCount));
         }
 
-        public PrimitiveViewModelLogic(ICrossSectionRepository repository)
+        public PrimitiveViewModelLogic(ICrossSection section)
         {
-            this.repository = repository;
+            this.section = section;
             Items = new ObservableCollection<PrimitiveBase>();
             AddItems(PrimitiveOperations.ConvertNdmPrimitivesToPrimitiveBase(this.repository.Primitives));
         }
diff --git a/StructureHelper/Windows/ViewModels/PrimitiveProperties/PrimitivePropertiesViewModel.cs b/StructureHelper/Windows/ViewModels/PrimitiveProperties/PrimitivePropertiesViewModel.cs
index c06d9c0..041d840 100644
--- a/StructureHelper/Windows/ViewModels/PrimitiveProperties/PrimitivePropertiesViewModel.cs
+++ b/StructureHelper/Windows/ViewModels/PrimitiveProperties/PrimitivePropertiesViewModel.cs
@@ -4,14 +4,19 @@ using StructureHelper.Models.Materials;
 using StructureHelper.Windows.ColorPickerWindow;
 using StructureHelper.Windows.MainWindow.Materials;
 using StructureHelper.Windows.ViewModels.NdmCrossSections;
+using StructureHelperCommon.Infrastructures.Exceptions;
+using StructureHelperCommon.Infrastructures.Strings;
 using StructureHelperCommon.Models.Shapes;
 using StructureHelperCommon.Services.ColorServices;
+using StructureHelperLogics.Models.CrossSections;
 using StructureHelperLogics.Models.Materials;
+using StructureHelperLogics.NdmCalculations.Primitives;
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
 using System.Linq;
+using System.Runtime.CompilerServices;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Input;
@@ -25,12 +30,13 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
     public class PrimitivePropertiesViewModel : ViewModelBase, IDataErrorInfo
     {
         private PrimitiveBase primitive;
-        private IHasHeadMaterials hasHeadMaterials;
+        private ICrossSectionRepository sectionRepository;
 
         public ICommand EditColorCommand { get; private set; }
         public ICommand EditMaterialCommand { get; private set; }
 
         public ObservableCollection<IHeadMaterial> HeadMaterials { get; private set; }
+        public ObservableCollection<PrimitiveBase> SurroundingPrimitives { get; private set; }
 
         public string Name
         {
@@ -54,7 +60,42 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 }
             }
         }
-
+        public PrimitiveBase? SurroundingPrimitive
+        {
+            get
+            {
+                if (primitive is not IHasSurroundingPrimitive)
+                {
+                    return null;
+                }
+                else 
+                {
+                    var sPrimitive = ((IHasSurroundingPrimitive)primitive).SurroundingPrimitive;
+                    if (sPrimitive is null) { return null; }
+                    foreach (var item in SurroundingPrimitives)
+                    {
+                        if (item.GetNdmPrimitive() == sPrimitive)
+                        {
+                            return item;
+                        }
+                    }
+                    return null;
+                }
+            }
+            set
+            {
+                if (value is not null)
+                {
+                    if (primitive is IHasSurroundingPrimitive)
+                    {
+                        var sPrimitive = value.GetNdmPrimitive();
+                        ((IHasSurroundingPrimitive)primitive).SurroundingPrimitive = sPrimitive;
+                        OnPropertyChanged(nameof(SurroundingPrimitive));
+                    }
+                    else throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknown + $", Actual type: {value.GetType()}");
+                }
+            }
+        }
         public double CenterX
         {
             get => primitive.CenterX;
@@ -126,7 +167,6 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 CenterX = CenterX;
             }
         }
-
         public double Height
         {
             get
@@ -148,7 +188,6 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 CenterY = CenterY; ;
             }
     }
-
         public double Area
         {
             get
@@ -171,7 +210,6 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 }
             }
         }
-
         public double Diameter
         {
             get
@@ -194,7 +232,6 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 }
             }
         }
-
         public Color Color
         {
             get => primitive.Color;
@@ -204,7 +241,6 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 OnPropertyChanged(nameof(Color));
             }
         }
-
         public bool SetMaterialColor
         {
             get => primitive.SetMaterialColor;
@@ -215,7 +251,6 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 OnPropertyChanged(nameof(SetMaterialColor));
             }
         }
-
         public int ZIndex
         {   get => primitive.ZIndex;
             set
@@ -223,7 +258,6 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 primitive.ZIndex = value;
             }
         }
-
         public bool IsVisible
         {
             get => primitive.IsVisible;
@@ -233,7 +267,6 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 OnPropertyChanged(nameof(IsVisible));
             }
         }
-
         public double Opacity
         {
             get => primitive.Opacity * 100d;
@@ -245,7 +278,6 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
                 OnPropertyChanged(nameof(Opacity));
             }
         }
-
         public string this[string columnName]
         {
             get
@@ -267,23 +299,28 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
 
         public string Error => throw new NotImplementedException();
 
-        public PrimitivePropertiesViewModel(PrimitiveBase primitive, IHasHeadMaterials hasHeadMaterials)
+        public PrimitivePropertiesViewModel(PrimitiveBase primitive, ICrossSectionRepository sectionRepository)
         {
             this.primitive = primitive;
-            this.hasHeadMaterials = hasHeadMaterials;
+            this.sectionRepository = sectionRepository;
             HeadMaterials = new ObservableCollection<IHeadMaterial>();
-            foreach (var material in hasHeadMaterials.HeadMaterials)
+            foreach (var material in sectionRepository.HeadMaterials)
             {
                 HeadMaterials.Add(material);
             }
             EditColorCommand = new RelayCommand(o => EditColor(), o => !SetMaterialColor);
             EditMaterialCommand = new RelayCommand(o => EditMaterial());
-
+            SurroundingPrimitives = new ObservableCollection<PrimitiveBase>();
+            foreach (var item in sectionRepository.Primitives)
+            {
+                if (item is RectanglePrimitive || item is CirclePrimitive)
+                {SurroundingPrimitives.Add(PrimitiveOperations.ConvertNdmPrimitiveToPrimitiveBase(item));}
+            }
         }
 
         private void EditMaterial()
         {
-            var wnd = new HeadMaterialsView(hasHeadMaterials);
+            var wnd = new HeadMaterialsView(sectionRepository);
             wnd.ShowDialog();
         }
 
diff --git a/StructureHelperCommon/Infrastructures/Interfaces/IHasForceCombinations.cs b/StructureHelperCommon/Infrastructures/Interfaces/IHasForceCombinations.cs
index e73e49f..a9422bd 100644
--- a/StructureHelperCommon/Infrastructures/Interfaces/IHasForceCombinations.cs
+++ b/StructureHelperCommon/Infrastructures/Interfaces/IHasForceCombinations.cs
@@ -5,6 +5,6 @@ namespace StructureHelperCommon.Infrastructures.Interfaces
 {
     public interface IHasForceCombinations
     {
-        List<IForceCombinationList> ForceCombinationLists { get; }
+        List<IForceAction> ForceActions { get; }
     }
 }
diff --git a/StructureHelperCommon/Models/Forces/ForceCombinationByFactor.cs b/StructureHelperCommon/Models/Forces/ForceCombinationByFactor.cs
index 0946788..3d58896 100644
--- a/StructureHelperCommon/Models/Forces/ForceCombinationByFactor.cs
+++ b/StructureHelperCommon/Models/Forces/ForceCombinationByFactor.cs
@@ -16,7 +16,7 @@ namespace StructureHelperCommon.Models.Forces
         public string Name { get; set; }
         public bool SetInGravityCenter { get; set; }
         /// <inheritdoc/>
-        public IPoint2D ForcePoint { get; private set; }
+        public IPoint2D ForcePoint { get; set; }
         /// <inheritdoc/>
         public IForceTuple FullSLSForces { get; private set; }
         /// <inheritdoc/>
@@ -29,10 +29,15 @@ namespace StructureHelperCommon.Models.Forces
             SetInGravityCenter = true;
             ForcePoint = new Point2D();
             FullSLSForces = new ForceTuple();
+            LongTermFactor = 1d;
+            ULSFactor = 1.2d;
         }
-        public List<IDesignForceTuple> GetCombination()
+        public IForceCombinationList GetCombinations()
         {
-            var result = new List<IDesignForceTuple>();
+            var result = new ForceCombinationList();
+            result.SetInGravityCenter = this.SetInGravityCenter;
+            result.ForcePoint = this.ForcePoint;
+            result.DesignForces.Clear();
             var limitStates = new List<LimitStates>() { LimitStates.ULS, LimitStates.SLS };
             var calcTerms = new List<CalcTerms>() { CalcTerms.ShortTerm, CalcTerms.LongTerm };
             foreach (var limitState in limitStates)
@@ -42,11 +47,21 @@ namespace StructureHelperCommon.Models.Forces
                 {
                     var termFactor = calcTerm is CalcTerms.ShortTerm ? 1d : LongTermFactor;
                     var designForceTuple = new DesignForceTuple() { LimitState = limitState, CalcTerm = calcTerm };
-                    designForceTuple.ForceTuple = ForceTupleService.MultiplyTuples(designForceTuple.ForceTuple, stateFactor * termFactor);
-                    result.Add(designForceTuple);
+                    designForceTuple.ForceTuple = ForceTupleService.MultiplyTuples(FullSLSForces, stateFactor * termFactor);
+                    result.DesignForces.Add(designForceTuple);
                 }
             }
             return result;
         }
+
+        public object Clone()
+        {
+            var newItem = new ForceCombinationByFactor();
+            ForceActionService.CopyActionProps(this, newItem);
+            newItem.FullSLSForces = FullSLSForces.Clone() as IForceTuple;
+            newItem.LongTermFactor = LongTermFactor;
+            newItem.ULSFactor = ULSFactor;
+            return newItem;
+        }
     }
 }
diff --git a/StructureHelperCommon/Models/Forces/ForceCombinationList.cs b/StructureHelperCommon/Models/Forces/ForceCombinationList.cs
index 3043b29..c633dc9 100644
--- a/StructureHelperCommon/Models/Forces/ForceCombinationList.cs
+++ b/StructureHelperCommon/Models/Forces/ForceCombinationList.cs
@@ -15,7 +15,7 @@ namespace StructureHelperCommon.Models.Forces
         /// <inheritdoc/>
         public bool SetInGravityCenter { get; set; }
         /// <inheritdoc/>
-        public IPoint2D ForcePoint { get; private set; }
+        public IPoint2D ForcePoint { get; set; }
         /// <inheritdoc/>
         public List<IDesignForceTuple> DesignForces { get; private set; }
         
@@ -35,10 +35,7 @@ namespace StructureHelperCommon.Models.Forces
         public object Clone()
         {
             var newItem = new ForceCombinationList();
-            newItem.Name = Name + " copy";
-            newItem.SetInGravityCenter = SetInGravityCenter;
-            newItem.ForcePoint.X = ForcePoint.X;
-            newItem.ForcePoint.Y = ForcePoint.Y;
+            ForceActionService.CopyActionProps(this, newItem);
             newItem.DesignForces.Clear();
             foreach (var item in DesignForces)
             {
@@ -48,9 +45,10 @@ namespace StructureHelperCommon.Models.Forces
             return newItem;
         }
         /// <inheritdoc/>
-        public List<IDesignForceTuple> GetCombination()
+        public IForceCombinationList GetCombinations()
         {
-            var result = new List<IDesignForceTuple>();
+            var result = Clone() as IForceCombinationList;
+            result.DesignForces.Clear();
             var limitStates = new List<LimitStates>() { LimitStates.ULS, LimitStates.SLS };
             var calcTerms = new List<CalcTerms>() { CalcTerms.ShortTerm, CalcTerms.LongTerm };
             foreach (var limitState in limitStates)
@@ -63,7 +61,7 @@ namespace StructureHelperCommon.Models.Forces
                     {
                         designForceTuple.ForceTuple = ForceTupleService.SumTuples(designForceTuple.ForceTuple, item.ForceTuple);
                     }
-                    result.Add(designForceTuple);
+                    result.DesignForces.Add(designForceTuple);
                 }
             }
             return result;
diff --git a/StructureHelperCommon/Models/Forces/IForceAction.cs b/StructureHelperCommon/Models/Forces/IForceAction.cs
index 285f194..eb206dd 100644
--- a/StructureHelperCommon/Models/Forces/IForceAction.cs
+++ b/StructureHelperCommon/Models/Forces/IForceAction.cs
@@ -7,10 +7,10 @@ using System.Threading.Tasks;
 
 namespace StructureHelperCommon.Models.Forces
 {
-    public interface IForceAction : IAction
+    public interface IForceAction : IAction, ICloneable
     {
         bool SetInGravityCenter { get; set; }
-        IPoint2D ForcePoint { get; }
-        List<IDesignForceTuple> GetCombination();
+        IPoint2D ForcePoint { get; set; }
+        IForceCombinationList GetCombinations();
     }
 }
diff --git a/StructureHelperCommon/Models/Forces/IForceCombinationList.cs b/StructureHelperCommon/Models/Forces/IForceCombinationList.cs
index 135e084..24715eb 100644
--- a/StructureHelperCommon/Models/Forces/IForceCombinationList.cs
+++ b/StructureHelperCommon/Models/Forces/IForceCombinationList.cs
@@ -4,8 +4,8 @@ using StructureHelperCommon.Models.Shapes;
 
 namespace StructureHelperCommon.Models.Forces
 {
-    public interface IForceCombinationList : IForceAction, ICloneable
+    public interface IForceCombinationList : IForceAction
     {
-        List<IDesignForceTuple> DesignForces { get; }
+        List<IDesignForceTuple> DesignForces { get;}
     }
 }
diff --git a/StructureHelperCommon/Services/Forces/ForceActionService.cs b/StructureHelperCommon/Services/Forces/ForceActionService.cs
new file mode 100644
index 0000000..a950718
--- /dev/null
+++ b/StructureHelperCommon/Services/Forces/ForceActionService.cs
@@ -0,0 +1,21 @@
+using StructureHelperCommon.Models.Forces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace StructureHelperCommon.Services.Forces
+{
+    internal static class ForceActionService
+    {
+        public static void CopyActionProps(IForceAction source, IForceAction target)
+        {
+            target.Name = source.Name;
+            target.SetInGravityCenter = source.SetInGravityCenter;
+            target.ForcePoint.X = source.ForcePoint.X;
+            target.ForcePoint.Y = source.ForcePoint.Y;
+        }
+    }
+}
diff --git a/StructureHelperLogics/Models/CrossSections/CrossSectionRepository.cs b/StructureHelperLogics/Models/CrossSections/CrossSectionRepository.cs
index 8a634c0..e094a63 100644
--- a/StructureHelperLogics/Models/CrossSections/CrossSectionRepository.cs
+++ b/StructureHelperLogics/Models/CrossSections/CrossSectionRepository.cs
@@ -13,14 +13,14 @@ namespace StructureHelperLogics.Models.CrossSections
 {
     public class CrossSectionRepository : ICrossSectionRepository
     {
-        public List<IForceCombinationList> ForceCombinationLists { get; private set; }
+        public List<IForceAction> ForceActions { get; private set; }
         public List<IHeadMaterial> HeadMaterials { get; private set; }
         public List<INdmPrimitive> Primitives { get; }
         public List<INdmCalculator> CalculatorsList { get; private set; }
 
         public CrossSectionRepository()
         {
-            ForceCombinationLists = new List<IForceCombinationList>();
+            ForceActions = new List<IForceAction>();
             HeadMaterials = new List<IHeadMaterial>();
             Primitives = new List<INdmPrimitive>();
             CalculatorsList = new List<INdmCalculator>();
diff --git a/StructureHelperLogics/Models/CrossSections/ICrossSectionRepository.cs b/StructureHelperLogics/Models/CrossSections/ICrossSectionRepository.cs
index 2499617..b6059ed 100644
--- a/StructureHelperLogics/Models/CrossSections/ICrossSectionRepository.cs
+++ b/StructureHelperLogics/Models/CrossSections/ICrossSectionRepository.cs
@@ -14,7 +14,7 @@ namespace StructureHelperLogics.Models.CrossSections
 {
     public interface ICrossSectionRepository : IHasHeadMaterials, IHasPrimitives
     {
-        List<IForceCombinationList> ForceCombinationLists { get; }
+        List<IForceAction> ForceActions { get; }
         List<INdmCalculator> CalculatorsList { get; }
     }
 }
diff --git a/StructureHelperLogics/Models/Templates/CrossSections/RCs/CircleGeometryLogic.cs b/StructureHelperLogics/Models/Templates/CrossSections/RCs/CircleGeometryLogic.cs
index fd65e2f..753c699 100644
--- a/StructureHelperLogics/Models/Templates/CrossSections/RCs/CircleGeometryLogic.cs
+++ b/StructureHelperLogics/Models/Templates/CrossSections/RCs/CircleGeometryLogic.cs
@@ -13,7 +13,7 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
     public class CircleGeometryLogic : IRCGeometryLogic
     {
         ICircleTemplate template;
-        
+        CirclePrimitive concreteBlock;
         
         public IEnumerable<IHeadMaterial> HeadMaterials { get; set; }
 
@@ -35,8 +35,8 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
             var diameter = template.Shape.Diameter;
             var concreteMaterial = HeadMaterials.ToList()[0];
             var primitives = new List<INdmPrimitive>();
-            var rectangle = new CirclePrimitive() { Diameter = diameter, Name = "Concrete block", HeadMaterial = concreteMaterial };
-            primitives.Add(rectangle);
+            concreteBlock = new CirclePrimitive() { Diameter = diameter, Name = "Concrete block", HeadMaterial = concreteMaterial };
+            primitives.Add(concreteBlock);
             return primitives;
         }
 
@@ -52,7 +52,13 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
                 var angle = i * dAngle;
                 var x = radius * Math.Sin(angle);
                 var y = radius * Math.Cos(angle);
-                var point = new PointPrimitive() { CenterX = x, CenterY = y, Area = barArea, Name = "Left bottom point", HeadMaterial = reinforcementMaterial };
+                var point = new ReinforcementPrimitive()
+                { CenterX = x,
+                    CenterY = y,
+                    Area = barArea,
+                    Name = "Left bottom point",
+                    HeadMaterial = reinforcementMaterial,
+                    SurroundingPrimitive=concreteBlock };
                 primitives.Add(point);
             }
             return primitives;
diff --git a/StructureHelperLogics/Models/Templates/CrossSections/RCs/RectGeometryLogic.cs b/StructureHelperLogics/Models/Templates/CrossSections/RCs/RectGeometryLogic.cs
index c08a64e..8976eeb 100644
--- a/StructureHelperLogics/Models/Templates/CrossSections/RCs/RectGeometryLogic.cs
+++ b/StructureHelperLogics/Models/Templates/CrossSections/RCs/RectGeometryLogic.cs
@@ -17,6 +17,7 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
         IRectangleBeamTemplate template;
         IHeadMaterial concrete => HeadMaterials.ToList()[0];
         IHeadMaterial reinforcement => HeadMaterials.ToList()[1];
+        RectanglePrimitive concreteBlock;
 
         RectangleShape rect => template.Shape as RectangleShape;
         double width => rect.Width;
@@ -47,8 +48,8 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
         private IEnumerable<INdmPrimitive> GetConcretePrimitives()
         {
             var primitives = new List<INdmPrimitive>();
-            var rectangle = new RectanglePrimitive(concrete) { Width = width, Height = height, Name = "Concrete block" };
-            primitives.Add(rectangle);
+            concreteBlock = new RectanglePrimitive(concrete) { Width = width, Height = height, Name = "Concrete block" };
+            primitives.Add(concreteBlock);
             return primitives;
         }
 
@@ -58,13 +59,13 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
             double[] ys = new double[] { -height / 2 + gap, height / 2 - gap };
 
             List<INdmPrimitive> primitives = new List<INdmPrimitive>();
-            var point = new PointPrimitive(reinforcement) { CenterX = xs[0], CenterY = ys[0], Area = area1, Name = "Left bottom point" };
+            var point = new ReinforcementPrimitive() { CenterX = xs[0], CenterY = ys[0], Area = area1, Name = "Left bottom point", HeadMaterial = reinforcement, SurroundingPrimitive=concreteBlock };
             primitives.Add(point);
-            point = new PointPrimitive(reinforcement) { CenterX = xs[1], CenterY = ys[0], Area = area1, Name = "Right bottom point" };
+            point = new ReinforcementPrimitive() { CenterX = xs[1], CenterY = ys[0], Area = area1, Name = "Right bottom point", HeadMaterial = reinforcement, SurroundingPrimitive = concreteBlock };
             primitives.Add(point);
-            point = new PointPrimitive(reinforcement) { CenterX = xs[0], CenterY = ys[1], Area = area2, Name = "Left top point" };
+            point = new ReinforcementPrimitive() { CenterX = xs[0], CenterY = ys[1], Area = area2, Name = "Left top point", HeadMaterial = reinforcement, SurroundingPrimitive = concreteBlock };
             primitives.Add(point);
-            point = new PointPrimitive(reinforcement) { CenterX = xs[1], CenterY = ys[1], Area = area2, Name = "Right top point" };
+            point = new ReinforcementPrimitive() { CenterX = xs[1], CenterY = ys[1], Area = area2, Name = "Right top point", HeadMaterial = reinforcement, SurroundingPrimitive = concreteBlock };
             primitives.Add(point);
             return primitives;
         }
@@ -82,9 +83,9 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
                 double dist = (xs[1] - xs[0]) / count;
                 for (int i = 1; i < count; i++)
                 {
-                    point = new PointPrimitive(reinforcement) { CenterX = xs[0] + dist * i, CenterY = ys[0], Area = area1, Name = $"Bottom point {i}" };
+                    point = new ReinforcementPrimitive() { CenterX = xs[0] + dist * i, CenterY = ys[0], Area = area1, Name = $"Bottom point {i}", HeadMaterial = reinforcement, SurroundingPrimitive = concreteBlock };
                     primitives.Add(point);
-                    point = new PointPrimitive(reinforcement) { CenterX = xs[0] + dist * i, CenterY = ys[1], Area = area2, Name = $"Top point {i}" };
+                    point = new ReinforcementPrimitive() { CenterX = xs[0] + dist * i, CenterY = ys[1], Area = area2, Name = $"Top point {i}", HeadMaterial = reinforcement, SurroundingPrimitive = concreteBlock };
                     primitives.Add(point);
                 }
             }
@@ -94,9 +95,9 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
                 double dist = (ys[1] - ys[0]) / count;
                 for (int i = 1; i < count; i++)
                 {
-                    point = new PointPrimitive(reinforcement) { CenterX = xs[0], CenterY = ys[0] + dist * i, Area = area1, Name = $"Left point {i}" };
+                    point = new ReinforcementPrimitive() { CenterX = xs[0], CenterY = ys[0] + dist * i, Area = area1, Name = $"Left point {i}", HeadMaterial = reinforcement, SurroundingPrimitive = concreteBlock };
                     primitives.Add(point);
-                    point = new PointPrimitive(reinforcement) { CenterX = xs[1], CenterY = ys[0] + dist * i, Area = area1, Name = $"Right point {i}" };
+                    point = new ReinforcementPrimitive() { CenterX = xs[1], CenterY = ys[0] + dist * i, Area = area1, Name = $"Right point {i}", HeadMaterial = reinforcement, SurroundingPrimitive = concreteBlock };
                     primitives.Add(point);
                 }
             }
diff --git a/StructureHelperLogics/Models/Templates/CrossSections/RCs/SectionTemplate.cs b/StructureHelperLogics/Models/Templates/CrossSections/RCs/SectionTemplate.cs
index 9553bdb..9050caa 100644
--- a/StructureHelperLogics/Models/Templates/CrossSections/RCs/SectionTemplate.cs
+++ b/StructureHelperLogics/Models/Templates/CrossSections/RCs/SectionTemplate.cs
@@ -37,10 +37,14 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
             var materials = materialLogic.GetHeadMaterials();
             geometryLogic.HeadMaterials = materials;
             primitives = geometryLogic.GetNdmPrimitives();
+            foreach (var primitive in primitives)
+            {
+                primitive.CrossSection = section;
+            }
             repository.HeadMaterials.AddRange(materials);
             repository.Primitives.AddRange(primitives);
             combinations = forceLogic.GetCombinationList();
-            repository.ForceCombinationLists.AddRange(combinations);
+            repository.ForceActions.AddRange(combinations);
             calculators = calculatorLogic.GetNdmCalculators();
             AddAllForcesToCalculators();
             AddAllPrimitivesToCalculator();
@@ -55,7 +59,7 @@ namespace StructureHelperLogics.Models.Templates.CrossSections.RCs
                 if (calculator is IHasForceCombinations)
                 {
                     var forceCalculator = calculator as IHasForceCombinations;
-                    forceCalculator.ForceCombinationLists.AddRange(combinations);
+                    forceCalculator.ForceActions.AddRange(combinations);
                 }
             }
         }
diff --git a/StructureHelperLogics/NdmCalculations/Analyses/ByForces/ForceCalculator.cs b/StructureHelperLogics/NdmCalculations/Analyses/ByForces/ForceCalculator.cs
index 64ec324..93fc3c6 100644
--- a/StructureHelperLogics/NdmCalculations/Analyses/ByForces/ForceCalculator.cs
+++ b/StructureHelperLogics/NdmCalculations/Analyses/ByForces/ForceCalculator.cs
@@ -25,12 +25,12 @@ namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
         public string Name { get; set; }
         public List<LimitStates> LimitStatesList { get; }
         public List<CalcTerms> CalcTermsList { get; }
-        public List<IForceCombinationList> ForceCombinationLists { get; }
+        public List<IForceAction> ForceActions { get; }
         public List<INdmPrimitive> Primitives { get; }
         public INdmResult Result { get; private set; }
         public ICompressedMember CompressedMember { get; }
         public IAccuracy Accuracy { get; set; }
-
+        public List<IForceCombinationList> ForceCombinationLists { get; private set; }
         public void Run()
         {
             var checkResult = CheckInputData();
@@ -39,7 +39,11 @@ namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
                 Result = new ForcesResults() { IsValid = false, Desctription = checkResult };
                 return;
             }
-            else { CalculateResult(); }
+            else
+            {
+                GetCombinations();
+                CalculateResult();
+            }
         }
 
         private void CalculateResult()
@@ -103,6 +107,15 @@ namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
             Result = ndmResult;
         }
 
+        private void GetCombinations()
+        {
+            ForceCombinationLists = new List<IForceCombinationList>();
+            foreach (var item in ForceActions)
+            {
+                ForceCombinationLists.Add(item.GetCombinations());
+            }
+        }
+
         private IForceTuple GetLongTuple(List<IDesignForceTuple> designForces, LimitStates limitState)
         {
             IForceTuple longTuple;
@@ -143,7 +156,7 @@ namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
         {
             string result = "";
             NdmPrimitivesService.CheckPrimitives(Primitives);
-            if (ForceCombinationLists.Count == 0) { result += "Calculator does not contain any forces \n"; }
+            if (ForceActions.Count == 0) { result += "Calculator does not contain any forces \n"; }
             if (LimitStatesList.Count == 0) { result += "Calculator does not contain any limit states \n"; }
             if (CalcTermsList.Count == 0) { result += "Calculator does not contain any duration \n"; }
             return result;
@@ -151,7 +164,7 @@ namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
 
         public ForceCalculator()
         {
-            ForceCombinationLists = new List<IForceCombinationList>();
+            ForceActions = new List<IForceAction>();
             Primitives = new List<INdmPrimitive>();
             CompressedMember = new CompressedMember() { Buckling = false };
             Accuracy = new Accuracy() { IterationAccuracy = 0.001d, MaxIterationCount = 1000 };
@@ -177,7 +190,7 @@ namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
             AccuracyService.CopyProperties(Accuracy, target.Accuracy);
             CompressedMemberServices.CopyProperties(CompressedMember, target.CompressedMember);
             target.Primitives.AddRange(Primitives);
-            target.ForceCombinationLists.AddRange(ForceCombinationLists);
+            target.ForceActions.AddRange(ForceActions);
             return target;
         }
     }
diff --git a/StructureHelperLogics/NdmCalculations/Analyses/ByForces/IForceCalculator.cs b/StructureHelperLogics/NdmCalculations/Analyses/ByForces/IForceCalculator.cs
index 25d9723..a6938cc 100644
--- a/StructureHelperLogics/NdmCalculations/Analyses/ByForces/IForceCalculator.cs
+++ b/StructureHelperLogics/NdmCalculations/Analyses/ByForces/IForceCalculator.cs
@@ -15,5 +15,6 @@ namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
         List<LimitStates> LimitStatesList { get; }
         ICompressedMember CompressedMember { get; }
         IAccuracy Accuracy { get; set; }
+        List<IForceCombinationList> ForceCombinationLists { get;}
     }
 }
\ No newline at end of file
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/CirclePrimitive.cs b/StructureHelperLogics/NdmCalculations/Primitives/CirclePrimitive.cs
index 68c047d..fe5bf99 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/CirclePrimitive.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/CirclePrimitive.cs
@@ -4,6 +4,7 @@ using StructureHelper.Models.Materials;
 using StructureHelperCommon.Models.Forces;
 using StructureHelperCommon.Models.Shapes;
 using StructureHelperCommon.Services.ShapeServices;
+using StructureHelperLogics.Models.CrossSections;
 using StructureHelperLogics.NdmCalculations.Triangulations;
 using StructureHelperLogics.Services.NdmPrimitives;
 using System;
@@ -29,6 +30,7 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
         public int NdmMinDivision { get; set; }
         public bool ClearUnderlying { get; set; }
         public bool Triangulate { get; set; }
+        public ICrossSection? CrossSection { get; set; }
 
         public CirclePrimitive()
         {
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/IHasSorroundingPrimitive.cs b/StructureHelperLogics/NdmCalculations/Primitives/IHasSurroundingPrimitive.cs
similarity index 65%
rename from StructureHelperLogics/NdmCalculations/Primitives/IHasSorroundingPrimitive.cs
rename to StructureHelperLogics/NdmCalculations/Primitives/IHasSurroundingPrimitive.cs
index 3dfdf02..eca8eff 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/IHasSorroundingPrimitive.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/IHasSurroundingPrimitive.cs
@@ -6,8 +6,8 @@ using System.Threading.Tasks;
 
 namespace StructureHelperLogics.NdmCalculations.Primitives
 {
-    public interface IHasSorroundingPrimitive
+    public interface IHasSurroundingPrimitive
     {
-        INdmPrimitive SorroundingPrimitive { get; set; }
+        INdmPrimitive? SurroundingPrimitive { get; set; }
     }
 }
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/INdmPrimitive.cs b/StructureHelperLogics/NdmCalculations/Primitives/INdmPrimitive.cs
index 08622c3..0f96b59 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/INdmPrimitive.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/INdmPrimitive.cs
@@ -8,6 +8,7 @@ using System.Collections.Generic;
 using StructureHelperCommon.Infrastructures.Interfaces;
 using System;
 using StructureHelperCommon.Models.Forces;
+using StructureHelperLogics.Models.CrossSections;
 
 namespace StructureHelperLogics.NdmCalculations.Primitives
 {
@@ -16,6 +17,7 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
         string? Name { get; set; }
         double CenterX { get; set; }
         double CenterY { get; set; }
+        ICrossSection? CrossSection { get; set; }
         IHeadMaterial? HeadMaterial { get; set; }
         /// <summary>
         /// Flag of triangulation
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/PointPrimitive.cs b/StructureHelperLogics/NdmCalculations/Primitives/PointPrimitive.cs
index cdbd18f..bc18da0 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/PointPrimitive.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/PointPrimitive.cs
@@ -10,6 +10,7 @@ using StructureHelperLogics.NdmCalculations.Primitives;
 using StructureHelperLogics.NdmCalculations.Triangulations;
 using StructureHelperLogics.Services.NdmPrimitives;
 using StructureHelperCommon.Models.Forces;
+using StructureHelperLogics.Models.CrossSections;
 
 namespace StructureHelperLogics.Models.Primitives
 {
@@ -28,6 +29,7 @@ namespace StructureHelperLogics.Models.Primitives
 
         public IVisualProperty VisualProperty { get; }
         public bool Triangulate { get; set; }
+        public ICrossSection? CrossSection { get; set; }
 
         public PointPrimitive()
         {
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/RectanglePrimitive.cs b/StructureHelperLogics/NdmCalculations/Primitives/RectanglePrimitive.cs
index 29dd94a..d09f56f 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/RectanglePrimitive.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/RectanglePrimitive.cs
@@ -5,6 +5,7 @@ using StructureHelperCommon.Infrastructures.Interfaces;
 using StructureHelperCommon.Models.Forces;
 using StructureHelperCommon.Models.Shapes;
 using StructureHelperCommon.Services.ShapeServices;
+using StructureHelperLogics.Models.CrossSections;
 using StructureHelperLogics.Models.Primitives;
 using StructureHelperLogics.NdmCalculations.Triangulations;
 using StructureHelperLogics.Services.NdmPrimitives;
@@ -33,7 +34,7 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
         public bool ClearUnderlying { get; set; }
         public bool Triangulate { get; set; }
         public IVisualProperty VisualProperty { get; }
-
+        public ICrossSection? CrossSection { get; set; }
 
         public RectanglePrimitive()
         {
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/ReinforcementPrimitive.cs b/StructureHelperLogics/NdmCalculations/Primitives/ReinforcementPrimitive.cs
index 8ddbd6b..59f7f40 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/ReinforcementPrimitive.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/ReinforcementPrimitive.cs
@@ -2,6 +2,7 @@
 using LoaderCalculator.Data.Ndms;
 using StructureHelper.Models.Materials;
 using StructureHelperCommon.Models.Forces;
+using StructureHelperLogics.Models.CrossSections;
 using StructureHelperLogics.Models.Primitives;
 using StructureHelperLogics.NdmCalculations.Triangulations;
 using StructureHelperLogics.Services.NdmPrimitives;
@@ -15,7 +16,7 @@ using System.Windows.Media.Media3D;
 namespace StructureHelperLogics.NdmCalculations.Primitives
 {
     /// <inheritdoc/>
-    public class ReinforcementPrimitive : IPointPrimitive, IHasSorroundingPrimitive
+    public class ReinforcementPrimitive : IPointPrimitive, IHasSurroundingPrimitive
     {
         /// <inheritdoc/>
         public string Name { get; set; }
@@ -35,7 +36,8 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
 
         public int Id { get; set; }
         public double Area { get; set; }
-        public INdmPrimitive SorroundingPrimitive { get; set; }
+        public INdmPrimitive SurroundingPrimitive { get; set; }
+        public ICrossSection? CrossSection { get; set; }
 
         public ReinforcementPrimitive()
         {
@@ -52,7 +54,7 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
             var primitive = new ReinforcementPrimitive();
             NdmPrimitivesService.CopyNdmProperties(this, primitive);
             primitive.Area = Area;
-            primitive.SorroundingPrimitive = this.SorroundingPrimitive;
+            primitive.SurroundingPrimitive = SurroundingPrimitive;
             return primitive;
         }
 
diff --git a/StructureHelperLogics/Services/NdmCalculations/InterpolateService.cs b/StructureHelperLogics/Services/NdmCalculations/InterpolateService.cs
index 5d1cd4b..64d8391 100644
--- a/StructureHelperLogics/Services/NdmCalculations/InterpolateService.cs
+++ b/StructureHelperLogics/Services/NdmCalculations/InterpolateService.cs
@@ -23,17 +23,21 @@ namespace StructureHelperLogics.Services.NdmCalculations
             CompressedMemberServices.CopyProperties(source.CompressedMember, calculator.CompressedMember);
             calculator.Accuracy = source.Accuracy;
             calculator.Primitives.AddRange(source.Primitives);
-            calculator.ForceCombinationLists.Clear();
-            var combination = new ForceCombinationList()
+            calculator.ForceActions.Clear();
+            var forceTuples = ForceTupleService.InterpolateDesignTuple(finishDesignForce, startDesignForce, stepCount);
+            foreach (var forceTuple in forceTuples)
             {
-                Name = "New combination",
-                SetInGravityCenter = false
-            };
-            combination.DesignForces.Clear();
-            combination.DesignForces.AddRange(ForceTupleService.InterpolateDesignTuple(finishDesignForce, startDesignForce, stepCount));
-            combination.ForcePoint.X = 0;
-            combination.ForcePoint.Y = 0;
-            calculator.ForceCombinationLists.Add(combination);
+                var combination = new ForceCombinationList()
+                {
+                    Name = "New combination",
+                    SetInGravityCenter = false
+                };
+                combination.DesignForces.Clear();
+                combination.DesignForces.Add(forceTuple);
+                combination.ForcePoint.X = 0;
+                combination.ForcePoint.Y = 0;
+                calculator.ForceActions.Add(combination);
+            }
             return calculator;
         }
     }
diff --git a/StructureHelperTests/ViewModelTests/NdmPrimitiveTests.cs b/StructureHelperTests/ViewModelTests/NdmPrimitiveTests.cs
index a614d8d..07a87f0 100644
--- a/StructureHelperTests/ViewModelTests/NdmPrimitiveTests.cs
+++ b/StructureHelperTests/ViewModelTests/NdmPrimitiveTests.cs
@@ -33,6 +33,18 @@ namespace StructureHelperTests.ViewModelTests
             Assert.NotNull(vm);
         }
 
+        public void Circle_Run_ShouldPass()
+        {
+            //Arrange
+            var material = HeadMaterialFactory.GetHeadMaterial(HeadmaterialType.Concrete40, CodeTypes.SP63_13330_2018);
+            var primitive = new CirclePrimitive() { HeadMaterial = material};
+            var primitiveBase = new CircleViewPrimitive(primitive);
+            //Act
+            var vm = new PrimitivePropertiesViewModel(primitiveBase, new CrossSectionRepository());
+            //Assert
+            Assert.NotNull(vm);
+        }
+
         [Test]
         public void Point_Run_ShouldPass()
         {
@@ -45,5 +57,17 @@ namespace StructureHelperTests.ViewModelTests
             //Assert
             Assert.NotNull(vm);
         }
+
+        public void Reinforcement_Run_ShouldPass()
+        {
+            //Arrange
+            var material = HeadMaterialFactory.GetHeadMaterial(HeadmaterialType.Concrete40, CodeTypes.SP63_13330_2018);
+            var primitive = new ReinforcementPrimitive() { HeadMaterial = material };
+            var primitiveBase = new ReinforcementViewPrimitive(primitive);
+            //Act
+            var vm = new PrimitivePropertiesViewModel(primitiveBase, new CrossSectionRepository());
+            //Assert
+            Assert.NotNull(vm);
+        }
     }
 }