Index: src/Deltares.DSoilModel.Forms/DSoilModelContext.cs
===================================================================
diff -u -r385 -r435
--- src/Deltares.DSoilModel.Forms/DSoilModelContext.cs	(.../DSoilModelContext.cs)	(revision 385)
+++ src/Deltares.DSoilModel.Forms/DSoilModelContext.cs	(.../DSoilModelContext.cs)	(revision 435)
@@ -327,7 +327,8 @@
                 return new List<ShearStrengthModel>
                 {
                     ShearStrengthModel.CPhi,
-                    ShearStrengthModel.CuCalculated
+                    ShearStrengthModel.CuCalculated,
+                    ShearStrengthModel.None
                 };
             }
             return null;