Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Plugin/GrassCoverErosionInwardsGuiPlugin.cs
===================================================================
diff -u -r87445dcecde875ada5513431df8ca2d01a57f742 -r5e9fd91bb55d97ee46d4446960dfa7f63b0d48cf
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Plugin/GrassCoverErosionInwardsGuiPlugin.cs	(.../GrassCoverErosionInwardsGuiPlugin.cs)	(revision 87445dcecde875ada5513431df8ca2d01a57f742)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Plugin/GrassCoverErosionInwardsGuiPlugin.cs	(.../GrassCoverErosionInwardsGuiPlugin.cs)	(revision 5e9fd91bb55d97ee46d4446960dfa7f63b0d48cf)
@@ -70,7 +70,7 @@
                 FailureMechanismContextMenuStrip,
                 Gui);
 
-            yield return CalculationTreeNodeInfoFactory.CreateCalculationGroupContextTreeNodeInfo<GrassCoverErosionInwardsCalculationGroupContext>(CalculationGroupContextChildNodeObjects, context => AddCalculation(context.FailureMechanism, context.WrappedData), Gui);
+            yield return CalculationTreeNodeInfoFactory.CreateCalculationGroupContextTreeNodeInfo<GrassCoverErosionInwardsCalculationGroupContext>(CalculationGroupContextChildNodeObjects, CalculationGroupContextContextMenuStrip);
 
             yield return new TreeNodeInfo<GrassCoverErosionInwardsCalculationContext>
             {
@@ -337,6 +337,41 @@
             return childNodeObjects.ToArray();
         }
 
+        private ContextMenuStrip CalculationGroupContextContextMenuStrip(GrassCoverErosionInwardsCalculationGroupContext nodeData, object parentData, TreeViewControl treeViewControl)
+        {
+            var group = nodeData.WrappedData;
+            var builder = Gui.Get(nodeData, treeViewControl);
+            var isNestedGroup = parentData is GrassCoverErosionInwardsCalculationGroupContext;
+
+            if (!isNestedGroup)
+            {
+                builder
+                    .AddOpenItem()
+                    .AddSeparator();
+            }
+
+            CalculationTreeNodeInfoFactory.AddCreateCalculationGroupItem(builder, group);
+            CalculationTreeNodeInfoFactory.AddCreateCalculationItem(builder, nodeData, context => AddCalculation(context.FailureMechanism, context.WrappedData));
+            builder.AddSeparator();
+
+            if (isNestedGroup)
+            {
+                builder.AddRenameItem();
+                builder.AddDeleteItem();
+                builder.AddSeparator();
+            }
+
+            return builder
+                .AddImportItem()
+                .AddExportItem()
+                .AddSeparator()
+                .AddExpandAllItem()
+                .AddCollapseAllItem()
+                .AddSeparator()
+                .AddPropertiesItem()
+                .Build();
+        }
+
         #endregion
     }
 }
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