Index: Riskeer/Piping/src/Riskeer.Piping.Plugin/PipingPlugin.cs
===================================================================
diff -u -rb6c574cf6bc779c216c06ff5d214e453183ff100 -r242c0f8348fd696858006ead7738427ae4c5374f
--- Riskeer/Piping/src/Riskeer.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision b6c574cf6bc779c216c06ff5d214e453183ff100)
+++ Riskeer/Piping/src/Riskeer.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision 242c0f8348fd696858006ead7738427ae4c5374f)
@@ -718,6 +718,7 @@
             bool isNestedGroup = parentData is PipingCalculationGroupContext;
 
             StrictContextMenuItem generateCalculationsItem = CreateGeneratePipingCalculationsItem(nodeData);
+            StrictContextMenuItem addSemiProbabilisticCalculationItem = CreateAddSemiProbabilisticCalculationItem(nodeData);
 
             PipingCalculationScenario[] calculations = nodeData.WrappedData.GetCalculations()
                                                                .OfType<PipingCalculationScenario>()
@@ -746,7 +747,7 @@
             }
 
             builder.AddCreateCalculationGroupItem(group)
-                   .AddCreateCalculationItem(nodeData, AddCalculationScenario)
+                   .AddCustomItem(addSemiProbabilisticCalculationItem)
                    .AddSeparator();
 
             if (isNestedGroup)
@@ -837,6 +838,15 @@
                 Enabled = surfaceLineAvailable
             };
         }
+        
+        private static StrictContextMenuItem CreateAddSemiProbabilisticCalculationItem(PipingCalculationGroupContext context)
+        {
+            return new StrictContextMenuItem(
+                Resources.CalculationGroup_Add_SemiProbabilisticCalculation,
+                Resources.CalculationGroup_Add_SemiProbabilisticCalculation_ToolTip,
+                RiskeerCommonFormsResources.FailureMechanismIcon,
+                (sender, args) => AddCalculationScenario(context));
+        }
 
         private void ShowSurfaceLineSelectionDialog(PipingCalculationGroupContext nodeData)
         {
Index: Riskeer/Piping/src/Riskeer.Piping.Plugin/Properties/Resources.Designer.cs
===================================================================
diff -u -r106eeb3a0608bd85eb1fcc8fff72256fd9c3ac5f -r242c0f8348fd696858006ead7738427ae4c5374f
--- Riskeer/Piping/src/Riskeer.Piping.Plugin/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 106eeb3a0608bd85eb1fcc8fff72256fd9c3ac5f)
+++ Riskeer/Piping/src/Riskeer.Piping.Plugin/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 242c0f8348fd696858006ead7738427ae4c5374f)
@@ -1,4 +1,4 @@
-// Copyright (C) Stichting Deltares 2019. All rights reserved.
+// Copyright (C) Stichting Deltares 2019. All rights reserved.
 //
 // This file is part of Riskeer.
 //
@@ -82,6 +82,24 @@
         }
         
         /// <summary>
+        ///   Looks up a localized string similar to Semi-probabilistische berekening &amp;toevoegen.
+        /// </summary>
+        public static string CalculationGroup_Add_SemiProbabilisticCalculation {
+            get {
+                return ResourceManager.GetString("CalculationGroup_Add_SemiProbabilisticCalculation", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Voeg een nieuwe semi-probabilistische berekening toe aan deze map met berekeningen..
+        /// </summary>
+        public static string CalculationGroup_Add_SemiProbabilisticCalculation_ToolTip {
+            get {
+                return ResourceManager.GetString("CalculationGroup_Add_SemiProbabilisticCalculation_ToolTip", resourceCulture);
+            }
+        }
+        
+        /// <summary>
         ///   Looks up a localized string similar to Alle berekeningen met een profielschematisatie bijwerken..
         /// </summary>
         public static string PipingPlugin_CreateUpdateEntryAndExitPointItem_Update_all_calculations_with_surface_line_ToolTip {
Index: Riskeer/Piping/src/Riskeer.Piping.Plugin/Properties/Resources.resx
===================================================================
diff -u -rbf1fde9d2147a6eeaecebbb371be2c4856759159 -r242c0f8348fd696858006ead7738427ae4c5374f
--- Riskeer/Piping/src/Riskeer.Piping.Plugin/Properties/Resources.resx	(.../Resources.resx)	(revision bf1fde9d2147a6eeaecebbb371be2c4856759159)
+++ Riskeer/Piping/src/Riskeer.Piping.Plugin/Properties/Resources.resx	(.../Resources.resx)	(revision 242c0f8348fd696858006ead7738427ae4c5374f)
@@ -158,4 +158,10 @@
 
 Weet u zeker dat u wilt doorgaan?</value>
   </data>
+  <data name="CalculationGroup_Add_SemiProbabilisticCalculation" xml:space="preserve">
+    <value>Semi-probabilistische berekening &amp;toevoegen</value>
+  </data>
+  <data name="CalculationGroup_Add_SemiProbabilisticCalculation_ToolTip" xml:space="preserve">
+    <value>Voeg een nieuwe semi-probabilistische berekening toe aan deze map met berekeningen.</value>
+  </data>
 </root>
\ No newline at end of file
Index: Riskeer/Piping/test/Riskeer.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r05ccb12347fe3b2591de1b328c20d566de34ab2a -r242c0f8348fd696858006ead7738427ae4c5374f
--- Riskeer/Piping/test/Riskeer.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationGroupContextTreeNodeInfoTest.cs	(.../PipingCalculationGroupContextTreeNodeInfoTest.cs)	(revision 05ccb12347fe3b2591de1b328c20d566de34ab2a)
+++ Riskeer/Piping/test/Riskeer.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationGroupContextTreeNodeInfoTest.cs	(.../PipingCalculationGroupContextTreeNodeInfoTest.cs)	(revision 242c0f8348fd696858006ead7738427ae4c5374f)
@@ -59,7 +59,7 @@
         private const int contextMenuImportCalculationGroupIndexRootGroup = 2;
         private const int contextMenuExportCalculationGroupIndexRootGroup = 3;
         private const int contextMenuAddCalculationGroupIndexRootGroup = 7;
-        private const int contextMenuAddCalculationIndexRootGroup = 8;
+        private const int contextMenuAddSemiProbabilisticCalculationIndexRootGroup = 8;
         private const int contextMenuUpdateEntryAndExitPointsAllIndexRootGroup = 10;
         private const int contextMenuValidateAllIndexRootGroup = 12;
         private const int contextMenuCalculateAllIndexRootGroup = 13;
@@ -72,7 +72,7 @@
         private const int contextMenuExportCalculationGroupIndexNestedGroup = 1;
         private const int contextMenuDuplicateIndexNestedGroup = 3;
         private const int contextMenuAddCalculationGroupIndexNestedGroup = 5;
-        private const int contextMenuAddCalculationIndexNestedGroup = 6;
+        private const int contextMenuAddSemiProbabilisticCalculationIndexNestedGroup = 6;
         private const int contextMenuRenameCalculationGroupIndexNestedGroup = 8;
         private const int contextMenuUpdateEntryAndExitPointsAllIndexNestedGroup = 9;
         private const int contextMenuValidateAllIndexNestedGroup = 11;
@@ -259,9 +259,9 @@
                                                               "&Map toevoegen",
                                                               "Voeg een nieuwe map toe aan deze map met berekeningen.",
                                                               RiskeerCommonFormsResources.AddFolderIcon);
-                TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuAddCalculationIndexNestedGroup,
-                                                              "Berekening &toevoegen",
-                                                              "Voeg een nieuwe berekening toe aan deze map met berekeningen.",
+                TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuAddSemiProbabilisticCalculationIndexNestedGroup,
+                                                              "Semi-probabilistische berekening &toevoegen",
+                                                              "Voeg een nieuwe semi-probabilistische berekening toe aan deze map met berekeningen.",
                                                               RiskeerCommonFormsResources.CalculationIcon);
                 TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuRenameCalculationGroupIndexNestedGroup,
                                                               "&Hernoemen",
@@ -385,9 +385,9 @@
                                                               "Voeg een nieuwe map toe aan deze map met berekeningen.",
                                                               RiskeerCommonFormsResources.AddFolderIcon);
 
-                TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuAddCalculationIndexRootGroup,
-                                                              "Berekening &toevoegen",
-                                                              "Voeg een nieuwe berekening toe aan deze map met berekeningen.",
+                TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuAddSemiProbabilisticCalculationIndexRootGroup,
+                                                              "Semi-probabilistische berekening &toevoegen",
+                                                              "Voeg een nieuwe semi-probabilistische berekening toe aan deze map met berekeningen.",
                                                               RiskeerCommonFormsResources.CalculationIcon);
 
                 TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuUpdateEntryAndExitPointsAllIndexRootGroup,
@@ -906,7 +906,7 @@
                     Assert.AreEqual(1, group.Children.Count);
 
                     // Call
-                    contextMenu.Items[contextMenuAddCalculationIndexNestedGroup].PerformClick();
+                    contextMenu.Items[contextMenuAddSemiProbabilisticCalculationIndexNestedGroup].PerformClick();
 
                     // Assert
                     Assert.AreEqual(2, group.Children.Count);