Index: src/Deltares.DSoilModel.Forms.Tests/DSoilModelContextTest.cs
===================================================================
diff -u -r697 -r701
--- src/Deltares.DSoilModel.Forms.Tests/DSoilModelContextTest.cs	(.../DSoilModelContextTest.cs)	(revision 697)
+++ src/Deltares.DSoilModel.Forms.Tests/DSoilModelContextTest.cs	(.../DSoilModelContextTest.cs)	(revision 701)
@@ -472,8 +472,8 @@
             Assert.AreEqual(expectedEnabled, context.IsEnabled(grid, memberName));
         }
 
-        [TestCase(typeof(CharacteristicPoint), "X", false)]
-        [TestCase(typeof(CharacteristicPoint), "Z", false)]
+        [TestCase(typeof(CharacteristicPoint), "X", null)]
+        [TestCase(typeof(CharacteristicPoint), "Z", null)]
         public void IsEnabledTest(Type senderType, string memberName, bool? expectedEnabled)
         {
             var sender = Activator.CreateInstance(senderType);
Index: src/Deltares.DSoilModel.Forms/DSoilModelContext.cs
===================================================================
diff -u -r697 -r701
--- src/Deltares.DSoilModel.Forms/DSoilModelContext.cs	(.../DSoilModelContext.cs)	(revision 697)
+++ src/Deltares.DSoilModel.Forms/DSoilModelContext.cs	(.../DSoilModelContext.cs)	(revision 701)
@@ -362,10 +362,6 @@
                 return true; // all other parameters should be editable
             }
 
-            var cp = source as CharacteristicPoint;
-            if (member == cp.GetMemberName(p => p.X) || member == cp.GetMemberName(p => p.Z))
-                return false;
-
             var grid = source as GridViewControl;
             if (grid != null)
             {