Twin doorway open and door close buttons, in an elevator with two sets of doors, uncovered on the ThyssenKrupp elevator with the 2010s In the event of dual doorways, there might be two sets of doorway open and doorway near buttons, with 1 pair managing the front doorways, in the https://lift65319.wikibestproducts.com/803813/the_smart_trick_of_lifts_that_no_one_is_discussing