Index: DamClients/DamUI/trunk/src/Dam/Forms/DamContext.cs
===================================================================
diff -u -r6656 -r6718
--- DamClients/DamUI/trunk/src/Dam/Forms/DamContext.cs	(.../DamContext.cs)	(revision 6656)
+++ DamClients/DamUI/trunk/src/Dam/Forms/DamContext.cs	(.../DamContext.cs)	(revision 6718)
@@ -184,16 +184,13 @@
 
             if (source is Soil soil)
             {
-                if (member == StaticReflection.GetMemberName<Soil>(s => s.StressTable))
+                if (member == StaticReflection.GetMemberName<Soil>(s => s.Name) || 
+                    member == StaticReflection.GetMemberName<Soil>(s => s.StressTable) || 
+                    member == StaticReflection.GetMemberName<Soil>(s => s.SuTable))
                 {
                     return false;
                 }
 
-                if (member == StaticReflection.GetMemberName<Soil>(s => s.SuTable))
-                {
-                    return false;
-                }
-
                 if (member == StaticReflection.GetMemberName<Soil>(s => s.POP) ||
                     member == StaticReflection.GetMemberName<Soil>(s => s.RatioCuPc) ||
                     member == StaticReflection.GetMemberName<Soil>(s => s.StrengthIncreaseExponent))
@@ -210,6 +207,15 @@
                 return true;
             }
 
+            if (source is GridViewControl grid)
+            {
+                // Make sure you can not add or delete soil material 
+                if (grid.Name == "MaterialsGridViewControl" && member is "DeleteRowCommand" or "AddRowCommand")
+                {
+                    return false;
+                }
+            }
+
             return base.IsEnabled(source, member);
         }