This dialog allows relations to be displayed all at once (and is in sync with the properties dialog mentionned in the previous section); the relations cannot be edited (either created or removed) from that dialog (this is an improvment that may be done in a future version).
Using it is simple: the tables, views and sequences are all listed in the left part of the dialog, and when selected will be displayed (or hidden) on the right part of the dialog, along with the relations. Sequences appear as elliptical objects and tables or views as rectangular ones. Only the relations between two objects visible will be displayed using arrows.
It is possible to move the objects to better organize the display. The positions will be saved when the session is closed, and a hidden object will reappear at the same place it was before being hidden.
Here is a screen shot of a global dialog for relations: