How to: Customize the Amount of Information Displayed in Diagrams (Visual Database Tools)
When you add a table to a database diagram it appears with a set number of properties showing. You can choose from a menu of variations on how much information shows or you can create a custom set of properties.
The choices are:
To choose a table view
Right-click a table in the Database Diagram Designer.
From the shortcut menu, point to Table View and then click the view you want.
To create a custom table view
Right-click a table in Database Diagram Designer.
From the shortcut menu, point to Table View and then click Modify Custom.
In the Column Selection dialog box, choose which properties you want to show when Custom in chosen from the Table View menu.