When you set up the specific event (such as a gala or banquet) fill the blank "no per table".
Once all the attendees have been registered for the event,
go back into the event set up
right click
select Assign Tables and SAMS will auto-assigned tables.
You can also assign tables manually in the Attendee Events grid list. Highlight the event line, and add a number to the Table No field. Save the change.