Clearing the window does not delete the relationships, no, only that view of
the relationships.

You can view multiple relationships in the relationships window. Unlike SQL
Server's diagrams, however, you can have only one view of relationships at a
time. You can not use the relationships window to save multiple views.

Stephen Lebans has some utilities for saving and restoring relationship
window views at the following URL ...

http://www.lebans.com/saverelationshipview.htm

In line:

No, just clears the layout. Show All Relationsships will make them reappear.

You don't need a filename becayse they are stored in an internal table
(MSysRelationships) You can print each separate set of relations ships or
save 1 or all as a set. If you add a single table, then choose Show Direct
Relationships, you'll see only the ones connected to that table. Show All
Relationsships will display them all.