Index: Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs
===================================================================
diff -u -rb0b8ed98bdefa41a1c250ed464a3616fd23c2d65 -r9f0d7c757bb18ed98a0656b2a1913b7971480210
--- Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision b0b8ed98bdefa41a1c250ed464a3616fd23c2d65)
+++ Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision 9f0d7c757bb18ed98a0656b2a1913b7971480210)
@@ -83,6 +83,7 @@
 using Riskeer.Integration.IO.Importers;
 using Riskeer.Integration.Plugin.FileImporters;
 using Riskeer.Integration.Plugin.Handlers;
+using Riskeer.Integration.Plugin.Helpers;
 using Riskeer.Integration.Plugin.Merge;
 using Riskeer.Integration.Plugin.Properties;
 using Riskeer.Integration.Service;
@@ -1732,11 +1733,16 @@
 
         private ContextMenuStrip AssessmentSectionStateRootContextMenuStrip(AssessmentSectionStateRootContext nodeData, object parentData, TreeViewControl treeViewControl)
         {
+            AssessmentSection assessmentSection = nodeData.WrappedData;
+
             var importItem = new StrictContextMenuItem(
                 CoreGuiResources.Import,
                 CoreGuiResources.Import_ToolTip,
                 CoreGuiResources.ImportIcon,
-                (sender, args) => assessmentSectionMerger.StartMerge(nodeData.WrappedData));
+                (sender, args) => assessmentSectionMerger.StartMerge(
+                    assessmentSection, new HydraulicBoundaryDataUpdateHandler(
+                        assessmentSection, new DuneLocationsUpdateHandler(
+                            Gui.ViewCommands, assessmentSection.DuneErosion))));
 
             return Gui.Get(nodeData, treeViewControl)
                       .AddOpenItem()
@@ -2599,9 +2605,7 @@
                 RiskeerCommonFormsResources.GenericInputOutputIcon,
                 (sender, args) =>
                 {
-                    HydraulicBoundaryLocationCalculationsForTargetProbability hydraulicBoundaryLocationCalculationsForTargetProbability = CreateHydraulicBoundaryLocationCalculationsForTargetProbability(assessmentSection);
-
-                    nodeData.WrappedData.Add(hydraulicBoundaryLocationCalculationsForTargetProbability);
+                    nodeData.WrappedData.Add(HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.Create(assessmentSection));
                     nodeData.WrappedData.NotifyObservers();
                 });
 
@@ -2724,9 +2728,7 @@
                 RiskeerCommonFormsResources.GenericInputOutputIcon,
                 (sender, args) =>
                 {
-                    HydraulicBoundaryLocationCalculationsForTargetProbability hydraulicBoundaryLocationCalculationsForTargetProbability = CreateHydraulicBoundaryLocationCalculationsForTargetProbability(assessmentSection);
-
-                    nodeData.WrappedData.Add(hydraulicBoundaryLocationCalculationsForTargetProbability);
+                    nodeData.WrappedData.Add(HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.Create(assessmentSection));
                     nodeData.WrappedData.NotifyObservers();
                 });
 
@@ -2802,16 +2804,6 @@
                                     .Any(whc => IllustrationPointsHelper.HasIllustrationPoints(whc.HydraulicBoundaryLocationCalculations));
         }
 
-        private static HydraulicBoundaryLocationCalculationsForTargetProbability CreateHydraulicBoundaryLocationCalculationsForTargetProbability(IAssessmentSection assessmentSection)
-        {
-            var calculationsForTargetProbability = new HydraulicBoundaryLocationCalculationsForTargetProbability(0.01);
-
-            calculationsForTargetProbability.HydraulicBoundaryLocationCalculations.AddRange(
-                assessmentSection.HydraulicBoundaryData.GetLocations().Select(hbl => new HydraulicBoundaryLocationCalculation(hbl)));
-
-            return calculationsForTargetProbability;
-        }
-
         #endregion
 
         #region AssemblyResults TreeNodeInfo