Index: src/Deltares.DSoilModel.Forms/DSoilModelContext.cs
===================================================================
diff -u -r139 -r227
--- src/Deltares.DSoilModel.Forms/DSoilModelContext.cs	(.../DSoilModelContext.cs)	(revision 139)
+++ src/Deltares.DSoilModel.Forms/DSoilModelContext.cs	(.../DSoilModelContext.cs)	(revision 227)
@@ -75,6 +75,11 @@
                 {
                     return false;
                 }
+
+                if (member == "ExecuteDeleteCommand")
+                {
+                    return false;
+                }
             }
 
             if (source is SosSoilLayer1D && member == ((SosSoilLayer1D)source).GetMemberName(x => x.BottomLevel))
Index: src/Deltares.DSoilModel.Tests/DSoilModelContextTest.cs
===================================================================
diff -u -r139 -r227
--- src/Deltares.DSoilModel.Tests/DSoilModelContextTest.cs	(.../DSoilModelContextTest.cs)	(revision 139)
+++ src/Deltares.DSoilModel.Tests/DSoilModelContextTest.cs	(.../DSoilModelContextTest.cs)	(revision 227)
@@ -6,7 +6,6 @@
 using Deltares.DSoilModel.Forms;
 using Deltares.Geotechnics;
 using Deltares.Geotechnics.Mechanisms;
-using Deltares.Standard;
 using Deltares.Standard.Attributes;
 using Deltares.Standard.Reflection;
 using NUnit.Framework;