The Database Utilities flyout toolbar, located on the CADmep toolbar, includes these 2 buttons:
Edit Main Database - Displays the Database dialog for the current database. You can view or change database settings using this dialog. For more information, see Database Settings.
Purge Database - If your user account is set up with permission to do so, clicking this button automatically performs a purge of the current database. For more information, see Purge Database.