Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresGuiPlugin.cs
===================================================================
diff -u -ra4982cc86750add1301faf5f3411a58c960a5e6d -r022b4cab3152fc424436d8c251bd3a7601ea8992
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresGuiPlugin.cs	(.../HeightStructuresGuiPlugin.cs)	(revision a4982cc86750add1301faf5f3411a58c960a5e6d)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresGuiPlugin.cs	(.../HeightStructuresGuiPlugin.cs)	(revision 022b4cab3152fc424436d8c251bd3a7601ea8992)
@@ -47,6 +47,11 @@
                 FailureMechanismDisabledChildNodeObjects,
                 (context, o, treeViewControl) => new ContextMenuStrip(),
                 (context, o, treeViewControl) => new ContextMenuStrip());
+
+            yield return RingtoetsTreeNodeInfoFactory.CreateCalculationGroupContextTreeNodeInfo<HeightStructuresCalculationGroupContext>(
+                context => new object[0],
+                (context, o, treeViewControl) => new ContextMenuStrip(),
+                (context, parentNodeData) => { });
         }
 
         #region HeightStructuresFailureMechanismContext TreeNodeInfo
@@ -57,6 +62,7 @@
             return new object[]
             {
                 new CategoryTreeFolder(RingtoetsCommonFormsResources.FailureMechanism_Inputs_DisplayName, GetInputs(wrappedData, context.Parent), TreeFolderCategory.Input),
+                new HeightStructuresCalculationGroupContext(wrappedData.CalculationsGroup, wrappedData, context.Parent),
                 new CategoryTreeFolder(RingtoetsCommonFormsResources.FailureMechanism_Outputs_DisplayName, GetOutputs(wrappedData), TreeFolderCategory.Output)
             };
         }