Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/MacroStabilityOutwardsSectionResultRow.cs
===================================================================
diff -u -rd941c131f9c9ef14eaf09b9865b6c072e1a7c3c3 -r16155640e5a575b9b59a9614be69c5bcc9dc02f7
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/MacroStabilityOutwardsSectionResultRow.cs	(.../MacroStabilityOutwardsSectionResultRow.cs)	(revision d941c131f9c9ef14eaf09b9865b6c072e1a7c3c3)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/MacroStabilityOutwardsSectionResultRow.cs	(.../MacroStabilityOutwardsSectionResultRow.cs)	(revision 16155640e5a575b9b59a9614be69c5bcc9dc02f7)
@@ -280,10 +280,22 @@
             ColumnStateDefinitions.Add(detailedAssessmentProbabilityIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentProbabilityIndex, new DataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
+            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
+            {
+                ReadOnly = true
+            });
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
+            {
+                ReadOnly = true
+            });
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
+            {
+                ReadOnly = true
+            });
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
+            {
+                ReadOnly = true
+            });
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }