viewing a map board image file in the Editor?

whenever I “Edit Module…” the MAP icon on the toolbar is always disabled and greyed out even when the module obviously uses a map board image file (i.e. board map is not generated dynamically) during game play . How can I see the map board image file in the Editor?

found the answer to my question in Dr_Nostromo’s reply to smaffers’ “Game pieces and maps” question. Thanks Dr_Nostromo! :smiley: