Fix missing selection type in CustomEditorPresenter

Source/Editor/CustomEditors/Values/ValueContainer.cs

@@ -43,7 +43,7 @@ namespace FlaxEditor.CustomEditors
         /// <summary>
         /// Gets the values type.
         /// </summary>
-        public ScriptType Type { get; }
+        public ScriptType Type { get; private set; }
 
         /// <summary>
         /// Gets a value indicating whether single object is selected.
@@ -284,6 +284,15 @@ namespace FlaxEditor.CustomEditors
             Type = type;
         }
 
+        /// <summary>
+        /// Sets the type. Use with caution.
+        /// </summary>
+        /// <param name="type">The type.</param>
+        public void SetType(ScriptType type)
+        {
+            Type = type;
+        }
+
         /// <summary>
         /// Gets the custom attributes defined for the values source member.
         /// </summary>