Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs
===================================================================
diff -u -r38b3c47ce8e923eb52cfd6f0987cfb1d028164dd -r3dd641f989b1ae4b18cf430c2b60cceacc1bed6f
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision 38b3c47ce8e923eb52cfd6f0987cfb1d028164dd)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision 3dd641f989b1ae4b18cf430c2b60cceacc1bed6f)
@@ -75,6 +75,11 @@
             MergeHydraulicBoundaryLocations(targetAssessmentSection, sourceAssessmentSection);
         }
 
+        private void BeforeMerge(AssessmentSection assessmentSection)
+        {
+            viewCommands.RemoveAllViewsForItem(assessmentSection);
+        }
+
         private void MergeHydraulicBoundaryLocations(AssessmentSection targetAssessmentSection, AssessmentSection sourceAssessmentSection)
         {
             for (var i = 0; i < targetAssessmentSection.HydraulicBoundaryDatabase.Locations.Count; i++)
@@ -84,6 +89,7 @@
 
                 if (ShouldMerge(targetCalculation, sourceCalculation))
                 {
+                    targetCalculation.InputParameters.ShouldIllustrationPointsBeCalculated = sourceCalculation.InputParameters.ShouldIllustrationPointsBeCalculated;
                     targetCalculation.Output = sourceCalculation.Output;
                 }
             }
@@ -94,7 +100,7 @@
             bool targetCalculationHasOutput = targetCalculation.HasOutput;
             bool sourceCalculationHasOutput = sourceCalculation.HasOutput;
 
-            if (!targetCalculationHasOutput && !sourceCalculationHasOutput 
+            if (!targetCalculationHasOutput && !sourceCalculationHasOutput
                 || targetCalculationHasOutput && !sourceCalculationHasOutput
                 || targetCalculationHasOutput && targetCalculation.Output.HasGeneralResult && !sourceCalculation.Output.HasGeneralResult)
             {
@@ -103,10 +109,5 @@
 
             return true;
         }
-
-        private void BeforeMerge(AssessmentSection assessmentSection)
-        {
-            viewCommands.RemoveAllViewsForItem(assessmentSection);
-        }
     }
 }
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