Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs
===================================================================
diff -u -r5ad23eae9f87bb12cbf453126070e8967e32d7ad -ra59b471e3b6a02319f91b7317b3814a099ef0221
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision 5ad23eae9f87bb12cbf453126070e8967e32d7ad)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision a59b471e3b6a02319f91b7317b3814a099ef0221)
@@ -19,7 +19,6 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
-using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Drawing;
@@ -29,7 +28,6 @@
 using Core.Common.Base;
 using Core.Common.Base.Service;
 using Core.Common.Controls.TreeView;
-using Core.Common.Controls.TreeView.Properties;
 using Core.Common.Gui.ContextMenu;
 using Core.Common.Gui.Forms;
 using Core.Common.Gui.Forms.ProgressDialog;
@@ -48,6 +46,7 @@
 using Ringtoets.Piping.Forms.PresentationObjects;
 using Ringtoets.Piping.Forms.PropertyClasses;
 using Ringtoets.Piping.Forms.Views;
+using Ringtoets.Piping.IO.Importer;
 using Ringtoets.Piping.Plugin.FileImporter;
 using Ringtoets.Piping.Primitives;
 using Ringtoets.Piping.Service;
@@ -116,7 +115,8 @@
                 IsEnabled = context => context.AssessmentSection.ReferenceLine != null,
                 CreateFileImporter = (context, filePath) => new StochasticSoilModelImporter(context.WrappedData,
                                                                                             filePath,
-                                                                                            new StochasticSoilModelReplaceDataStrategy())
+                                                                                            new StochasticSoilModelReplaceDataStrategy(),
+                                                                                            new StochasticSoilModelChangeHandler())
             };
         }
 
@@ -569,7 +569,8 @@
         {
             var importer = new StochasticSoilModelImporter(soilModelCollection,
                                                            sourceFilePath,
-                                                           new StochasticSoilModelUpdateDataStrategy(failureMechanism));
+                                                           new StochasticSoilModelUpdateDataStrategy(failureMechanism),
+                                                           new StochasticSoilModelChangeHandler());
 
             var activity = new FileImportActivity(importer, PipingPluginResources.PipingPlugin_RunUpdateStochasticSoilModel_Update_StochasticSoilModels);
             ActivityProgressDialogRunner.Run(Gui.MainWindow, activity);