Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs
===================================================================
diff -u -r494d3b3bc20925a8c6b118550837f39ad1f62a1e -r1141016ecbde1e84658f0a617eed864a547dd1ac
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs	(.../HeightStructuresPlugin.cs)	(revision 494d3b3bc20925a8c6b118550837f39ad1f62a1e)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs	(.../HeightStructuresPlugin.cs)	(revision 1141016ecbde1e84658f0a617eed864a547dd1ac)
@@ -323,8 +323,15 @@
             var isNestedGroup = parentData is HeightStructuresCalculationGroupContext;
 
             builder.AddCreateCalculationGroupItem(group)
-                   .AddCreateCalculationItem(context, AddCalculation)
-                   .AddSeparator()
+                   .AddCreateCalculationItem(context, AddCalculation);
+
+            if (!isNestedGroup)
+            {
+                builder.AddSeparator()
+                       .AddRemoveAllChildrenItem(group);
+            }
+
+            builder.AddSeparator()
                    .AddValidateAllCalculationsInGroupItem(
                        context,
                        c => ValidateAll(c.WrappedData.GetCalculations().OfType<HeightStructuresCalculation>(), c.AssessmentSection),