Index: Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs
===================================================================
diff -u -r29745d610b572f89d18948dd0f00fc02fffe4985 -r43c03afe6a6c7bbe3e76697d38515afb10d424f2
--- Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision 29745d610b572f89d18948dd0f00fc02fffe4985)
+++ Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision 43c03afe6a6c7bbe3e76697d38515afb10d424f2)
@@ -2325,6 +2325,7 @@
                           .AddCustomItem(waterLevelCalculationItem)
                           .AddSeparator()
                           .AddClearIllustrationPointsOfCalculationsItem(() => WaterLevelCalculationsForUserDefinedTargetProbabilitiesHaveIllustrationPoints(assessmentSection), changeHandler)
+                          .AddRemoveAllChildrenItem()
                           .AddSeparator()
                           .AddCollapseAllItem()
                           .AddExpandAllItem()
@@ -2426,6 +2427,7 @@
                           .AddCustomItem(waveHeightCalculationItem)
                           .AddSeparator()
                           .AddClearIllustrationPointsOfCalculationsItem(() => WaveHeightCalculationsForUserDefinedTargetProbabilitiesHaveIllustrationPoints(assessmentSection), changeHandler)
+                          .AddRemoveAllChildrenItem()
                           .AddSeparator()
                           .AddCollapseAllItem()
                           .AddExpandAllItem()
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r9a62ba8bb83c146c29ac911d689785361eac92ed -r43c03afe6a6c7bbe3e76697d38515afb10d424f2
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs	(.../WaterLevelCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs)	(revision 9a62ba8bb83c146c29ac911d689785361eac92ed)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs	(.../WaterLevelCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs)	(revision 43c03afe6a6c7bbe3e76697d38515afb10d424f2)
@@ -173,6 +173,7 @@
                 menuBuilder.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddSeparator()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilder);
+                menuBuilder.Expect(mb => mb.AddDeleteChildrenItem()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddSeparator()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddCollapseAllItem()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddExpandAllItem()).Return(menuBuilder);
@@ -236,7 +237,7 @@
                     using (ContextMenuStrip menu = info.ContextMenuStrip(nodeData, assessmentSection, treeViewControl))
                     {
                         // Assert
-                        Assert.AreEqual(8, menu.Items.Count);
+                        Assert.AreEqual(9, menu.Items.Count);
 
                         TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuAddTargetProbabilityIndex,
                                                                       "Doelkans toevoegen",
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaveHeightCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -rd1051acbaf86084a5004b578cdbe450e31611c11 -r43c03afe6a6c7bbe3e76697d38515afb10d424f2
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaveHeightCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs	(.../WaveHeightCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs)	(revision d1051acbaf86084a5004b578cdbe450e31611c11)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaveHeightCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs	(.../WaveHeightCalculationsForUserDefinedTargetProbabilitiesGroupContextTreeNodeInfoTest.cs)	(revision 43c03afe6a6c7bbe3e76697d38515afb10d424f2)
@@ -173,6 +173,7 @@
                 menuBuilder.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddSeparator()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilder);
+                menuBuilder.Expect(mb => mb.AddDeleteChildrenItem()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddSeparator()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddCollapseAllItem()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddExpandAllItem()).Return(menuBuilder);
@@ -236,7 +237,7 @@
                     using (ContextMenuStrip menu = info.ContextMenuStrip(nodeData, assessmentSection, treeViewControl))
                     {
                         // Assert
-                        Assert.AreEqual(8, menu.Items.Count);
+                        Assert.AreEqual(9, menu.Items.Count);
 
                         TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuAddTargetProbabilityIndex,
                                                                       "Doelkans toevoegen",