Index: Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Plugin/StabilityPointStructuresPlugin.cs
===================================================================
diff -u -r8b60c9e846480f3ffeeb263bfea5d3367bf6bee3 -r2a327730e54a97b93ac40215ae1e97fa3ee0e7ee
--- Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Plugin/StabilityPointStructuresPlugin.cs	(.../StabilityPointStructuresPlugin.cs)	(revision 8b60c9e846480f3ffeeb263bfea5d3367bf6bee3)
+++ Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Plugin/StabilityPointStructuresPlugin.cs	(.../StabilityPointStructuresPlugin.cs)	(revision 2a327730e54a97b93ac40215ae1e97fa3ee0e7ee)
@@ -734,6 +734,8 @@
             StructuresCalculation<StabilityPointStructuresInput> calculation = context.WrappedData;
             return builder.AddExportItem()
                           .AddSeparator()
+                          .AddDuplicateCalculationItem(calculation, context)
+                          .AddSeparator()
                           .AddRenameItem()
                           .AddUpdateForeshoreProfileOfCalculationItem(calculation,
                                                                       inquiryHelper,
Index: Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationContextTreeNodeInfoTest.cs
===================================================================
diff -u -r8b60c9e846480f3ffeeb263bfea5d3367bf6bee3 -r2a327730e54a97b93ac40215ae1e97fa3ee0e7ee
--- Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationContextTreeNodeInfoTest.cs)	(revision 8b60c9e846480f3ffeeb263bfea5d3367bf6bee3)
+++ Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationContextTreeNodeInfoTest.cs)	(revision 2a327730e54a97b93ac40215ae1e97fa3ee0e7ee)
@@ -58,11 +58,12 @@
     [TestFixture]
     public class StabilityPointStructuresCalculationContextTreeNodeInfoTest : NUnitFormTest
     {
-        private const int contextMenuUpdateForeshoreProfileIndex = 3;
-        private const int contextMenuUpdateStructureIndex = 4;
-        private const int contextMenuValidateIndex = 6;
-        private const int contextMenuCalculateIndex = 7;
-        private const int contextMenuClearIndex = 9;
+        private const int contextMenuDuplicateIndex = 2;
+        private const int contextMenuUpdateForeshoreProfileIndex = 5;
+        private const int contextMenuUpdateStructureIndex = 6;
+        private const int contextMenuValidateIndex = 8;
+        private const int contextMenuCalculateIndex = 9;
+        private const int contextMenuClearIndex = 11;
         private readonly string testDataPath = TestHelper.GetTestDataPath(TestDataPath.Ringtoets.Common.IO, "HydraulicBoundaryDatabaseImporter");
 
         private MockRepository mocks;
@@ -158,6 +159,8 @@
             {
                 menuBuilder.Expect(mb => mb.AddExportItem()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddSeparator()).Return(menuBuilder);
+                menuBuilder.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilder);
+                menuBuilder.Expect(mb => mb.AddSeparator()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddRenameItem()).Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilder);
                 menuBuilder.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilder);
@@ -223,8 +226,13 @@
                 using (ContextMenuStrip menu = info.ContextMenuStrip(nodeData, assessmentSection, treeViewControl))
                 {
                     // Assert
-                    Assert.AreEqual(16, menu.Items.Count);
+                    Assert.AreEqual(18, menu.Items.Count);
 
+                    TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuDuplicateIndex,
+                                                                  "&Dupliceren",
+                                                                  "Dupliceer deze berekening.",
+                                                                  RingtoetsCommonFormsResources.CopyHS);
+
                     TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuUpdateForeshoreProfileIndex,
                                                                   "&Bijwerken voorlandprofiel...",
                                                                   "Er moet een voorlandprofiel geselecteerd zijn.",