How to: Move a Type Member from one Type to Another (Class Designer)
Using Class Designer, you can move a type member from one type to another type, if both are visible in the current class diagram.
To move a type member from one type to another
In a type that is visible on the design surface, right-click the member you want to move to another type, and click Cut.
Right-click the destination type and click Paste.
The property is removed from the source type and appears in the destination type.