You can automatically rearrange your database diagram to display the table or tables you want to work on, or you can rearrange the entire diagram in a way that best displays all the tables and their relationships.
To arrange all tables in a diagram automatically
The diagram is rearranged to best display all the tables and their relationships. This is especially useful if you've moved the tables in the diagram, or added new tables, and want to clean up the layout of the diagram.
To arrange selected tables in a diagram automatically
The diagram is rearranged to best display the currently selected table or tables and their relationships.