Changing a table at either end of a reference

Chapter 3 Building Physical Diagrams

After reference creation you can change one table, or both of the tables, linked by a reference, using one of the following methods:

Click the reference and hold down ctrl as you drag one of its attach points to a different table.
Double-click a reference in the diagram to display its property sheet and choose a different parent or child table from the lists.
Select Model→References to open the list of references, and choose a different parent or child table from the lists.