Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs
===================================================================
diff -u -r250f2f821d2540a5c562d5fa9ccaab669dacb24b -r8e74b5d6680386fce48486c8253b62331f7d7055
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs	(.../HeightStructuresPlugin.cs)	(revision 250f2f821d2540a5c562d5fa9ccaab669dacb24b)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs	(.../HeightStructuresPlugin.cs)	(revision 8e74b5d6680386fce48486c8253b62331f7d7055)
@@ -25,6 +25,7 @@
 using System.Linq;
 using System.Windows.Forms;
 using Core.Common.Base;
+using Core.Common.Base.IO;
 using Core.Common.Controls.TreeView;
 using Core.Common.Gui.ContextMenu;
 using Core.Common.Gui.Forms.ProgressDialog;
@@ -43,6 +44,7 @@
 using Ringtoets.Common.Forms.ImportInfos;
 using Ringtoets.Common.Forms.PresentationObjects;
 using Ringtoets.Common.Forms.TreeNodeInfos;
+using Ringtoets.Common.IO.FileImporters.MessageProviders;
 using Ringtoets.Common.Service;
 using Ringtoets.Common.Utils;
 using Ringtoets.HeightStructures.Data;
@@ -89,16 +91,14 @@
         {
             yield return new ImportInfo<HeightStructuresContext>
             {
-                CreateFileImporter = (context, filePath) => new HeightStructuresImporter(context.WrappedData,
-                                                                                         context.AssessmentSection.ReferenceLine,
-                                                                                         new HeightStructureReplaceDataStrategy(context.FailureMechanism),
-                                                                                         filePath),
                 Name = RingtoetsCommonFormsResources.StructuresImporter_DisplayName,
                 Category = RingtoetsCommonFormsResources.Ringtoets_Category,
                 Image = RingtoetsCommonFormsResources.StructuresIcon,
-                FileFilterGenerator = new FileFilterGenerator(RingtoetsCommonIOResources.Shape_file_filter_Extension,
-                                                              RingtoetsCommonIOResources.Shape_file_filter_Description),
-                IsEnabled = context => context.AssessmentSection.ReferenceLine != null
+                IsEnabled = IsHeightStructuresImporterEnabled,
+                FileFilterGenerator = HeightStructureFileFilter(),
+                CreateFileImporter = (context, filePath) => CreateHeightStructuresImporter(context,
+                                                                                           filePath,
+                                                                                           new ImportMessageProvider())
             };
 
             yield return RingtoetsImportInfoFactory.CreateCalculationConfigurationImportInfo<HeightStructuresCalculationGroupContext>(
@@ -111,6 +111,22 @@
                     context.FailureMechanism));
         }
 
+        public override IEnumerable<UpdateInfo> GetUpdateInfos()
+        {
+            yield return new UpdateInfo<HeightStructuresContext>
+            {
+                Name = RingtoetsCommonDataResources.StructureCollection_TypeDescriptor,
+                Category = RingtoetsCommonFormsResources.Ringtoets_Category,
+                Image = RingtoetsCommonFormsResources.StructuresIcon,
+                IsEnabled = IsHeightStructuresImporterEnabled,
+                FileFilterGenerator = HeightStructureFileFilter(),
+                CreateFileImporter = (context, filePath) => CreateHeightStructuresImporter(context,
+                                                                                           filePath,
+                                                                                           new UpdateMessageProvider()),
+                CurrentPath = context => context.WrappedData.SourcePath
+            };
+        }
+
         public override IEnumerable<ExportInfo> GetExportInfos()
         {
             yield return RingtoetsExportInfoFactory.CreateCalculationGroupConfigurationExportInfo<HeightStructuresCalculationGroupContext>(
@@ -194,16 +210,7 @@
                                            ? Color.FromKnownColor(KnownColor.ControlText)
                                            : Color.FromKnownColor(KnownColor.GrayText),
                 ChildNodeObjects = context => context.WrappedData.Cast<object>().ToArray(),
-                ContextMenuStrip = (nodeData, parentData, treeViewControl) => Gui.Get(nodeData, treeViewControl)
-                                                                                 .AddImportItem()
-                                                                                 .AddSeparator()
-                                                                                 .AddDeleteChildrenItem()
-                                                                                 .AddSeparator()
-                                                                                 .AddCollapseAllItem()
-                                                                                 .AddExpandAllItem()
-                                                                                 .AddSeparator()
-                                                                                 .AddPropertiesItem()
-                                                                                 .Build()
+                ContextMenuStrip = HeightStructuresContextContextMenuStrip
             };
 
             yield return new TreeNodeInfo<HeightStructure>
@@ -359,6 +366,24 @@
 
         #endregion
 
+        #region HeightStructuresContext TreeNodeInfo
+
+        private ContextMenuStrip HeightStructuresContextContextMenuStrip(HeightStructuresContext nodeData,
+                                                                         object parentData, TreeViewControl treeViewControl)
+        {
+            return Gui.Get(nodeData, treeViewControl)
+                      .AddImportItem()
+                      .AddUpdateItem()
+                      .AddSeparator()
+                      .AddCollapseAllItem()
+                      .AddExpandAllItem()
+                      .AddSeparator()
+                      .AddPropertiesItem()
+                      .Build();
+        }
+
+        #endregion
+
         #region HeightStructuresFailureMechanismContext TreeNodeInfo
 
         private static object[] FailureMechanismEnabledChildNodeObjects(HeightStructuresFailureMechanismContext context)
@@ -736,5 +761,30 @@
         #endregion
 
         #endregion
+
+        #region Importers
+
+        #region HeightStructuresImporter
+
+        private static IFileImporter CreateHeightStructuresImporter(HeightStructuresContext context, string filePath, IImporterMessageProvider messageProvider)
+        {
+            return new HeightStructuresImporter(context.WrappedData, context.AssessmentSection.ReferenceLine,
+                                                filePath, messageProvider, new HeightStructureUpdateDataStrategy(context.FailureMechanism));
+        }
+
+        private static bool IsHeightStructuresImporterEnabled(HeightStructuresContext context)
+        {
+            return context.AssessmentSection.ReferenceLine != null;
+        }
+
+        private static FileFilterGenerator HeightStructureFileFilter()
+        {
+            return new FileFilterGenerator(RingtoetsCommonIOResources.Shape_file_filter_Extension,
+                                           RingtoetsCommonIOResources.Shape_file_filter_Description);
+        }
+
+        #endregion
+
+        #endregion
     }
 }
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