Index: DamClients/DamUI/trunk/src/Dam/Forms/DamContext.cs
===================================================================
diff -u -r4621 -r4622
--- DamClients/DamUI/trunk/src/Dam/Forms/DamContext.cs	(.../DamContext.cs)	(revision 4621)
+++ DamClients/DamUI/trunk/src/Dam/Forms/DamContext.cs	(.../DamContext.cs)	(revision 4622)
@@ -23,6 +23,7 @@
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
+using System.Linq.Expressions;
 using Deltares.Dam.Data;
 using Deltares.Geotechnics;
 using Deltares.Geotechnics.Soils;
@@ -152,8 +153,14 @@
                 return true;
             }
 
-            if (source is Soil)
+            if (source is Soil soil)
             {
+                if (member == StaticReflection.GetMemberName<Soil>(s => s.POP) ||
+                member == StaticReflection.GetMemberName<Soil>(s => s.RatioCuPc) ||
+                member == StaticReflection.GetMemberName<Soil>(s => s.StrengthIncreaseExponent))
+                {
+                    return soil.ShearStrengthModel == ShearStrengthModel.CuCalculated;
+                }
                 return true;
             }