Index: Riskeer/Integration/src/Riskeer.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs
===================================================================
diff -u -r95ef54e2348b92a2b9c0c7d0737e2508f8fc3ac4 -r066bbc72d2bcb35de2cdd943e35875463deafb9e
--- Riskeer/Integration/src/Riskeer.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision 95ef54e2348b92a2b9c0c7d0737e2508f8fc3ac4)
+++ Riskeer/Integration/src/Riskeer.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision 066bbc72d2bcb35de2cdd943e35875463deafb9e)
@@ -104,29 +104,42 @@
             changedObjects.AddRange(MergeHydraulicBoundaryLocationCalculations(targetAssessmentSection.WaveHeightCalculationsForFactorizedLowerLimitNorm,
                                                                                sourceAssessmentSection.WaveHeightCalculationsForFactorizedLowerLimitNorm));
 
+            // Also merge wave heights!!!
             ObservableList<HydraulicBoundaryLocationCalculationsForTargetProbability> sourceProbabilities = sourceAssessmentSection.WaterLevelCalculationsForUserDefinedTargetProbabilities;
 
+            HydraulicBoundaryLocationCalculationsForTargetProbability[] probabilitiesToMerge = DetermineProbabilitiesToMerge(targetAssessmentSection, sourceAssessmentSection, changedObjects);
+
+            IEnumerable<HydraulicBoundaryLocationCalculationsForTargetProbability> targetProbabilities = sourceProbabilities.Except(probabilitiesToMerge);
+
+            MergeUniqueProbabilities(targetAssessmentSection, targetProbabilities);
+
+            log.Info(changedObjects.Any()
+                         ? Resources.AssessmentSectionMergeHandler_MergeHydraulicBoundaryLocations_HydraulicBoundaryLocations_merged
+                         : Resources.AssessmentSectionMergeHandler_MergeHydraulicBoundaryLocations_HydraulicBoundaryLocations_not_merged);
+
+            return changedObjects;
+        }
+
+        private static HydraulicBoundaryLocationCalculationsForTargetProbability[] DetermineProbabilitiesToMerge(IAssessmentSection targetAssessmentSection, IAssessmentSection sourceAssessmentSection, List<IObservable> changedObjects)
+        {
             HydraulicBoundaryLocationCalculationsForTargetProbability[] probabilitiesToMerge = sourceAssessmentSection.WaterLevelCalculationsForUserDefinedTargetProbabilities
                                                                                                                       .Where(sp => targetAssessmentSection.WaterLevelCalculationsForUserDefinedTargetProbabilities
                                                                                                                                                           .Select(c => c.TargetProbability)
                                                                                                                                                           .Contains(sp.TargetProbability)).ToArray();
 
+            MergeProbabilities(targetAssessmentSection, changedObjects, probabilitiesToMerge);
+
+            return probabilitiesToMerge;
+        }
+
+        private static void MergeProbabilities(IAssessmentSection targetAssessmentSection, List<IObservable> changedObjects, HydraulicBoundaryLocationCalculationsForTargetProbability[] probabilitiesToMerge)
+        {
             foreach (HydraulicBoundaryLocationCalculationsForTargetProbability sourceProbability in probabilitiesToMerge)
             {
                 HydraulicBoundaryLocationCalculationsForTargetProbability targetProbability = targetAssessmentSection.WaterLevelCalculationsForUserDefinedTargetProbabilities.First(c => c.TargetProbability.Equals(sourceProbability.TargetProbability));
 
                 changedObjects.AddRange(MergeHydraulicBoundaryLocationCalculations(targetProbability.HydraulicBoundaryLocationCalculations, sourceProbability.HydraulicBoundaryLocationCalculations));
             }
-
-            IEnumerable<HydraulicBoundaryLocationCalculationsForTargetProbability> targetProbabilities = sourceProbabilities.Except(probabilitiesToMerge);
-
-            MergeUniqueProbabilities(targetAssessmentSection, targetProbabilities);
-
-            log.Info(changedObjects.Any()
-                         ? Resources.AssessmentSectionMergeHandler_MergeHydraulicBoundaryLocations_HydraulicBoundaryLocations_merged
-                         : Resources.AssessmentSectionMergeHandler_MergeHydraulicBoundaryLocations_HydraulicBoundaryLocations_not_merged);
-
-            return changedObjects;
         }
 
         private static void MergeUniqueProbabilities(IAssessmentSection targetAssessmentSection, IEnumerable<HydraulicBoundaryLocationCalculationsForTargetProbability> targetProbabilities)