The Presidents Ballroom airwalls contain two doors, one for the A/B airwall and one for the B/C airwall. It is theoretically possible but extraordinarily time-consuming to swap these doors to other locations in the airwall. Sections of airwall can be omitted, creating additional doorways. Airwalls cannot be closed on top of dancefloor. | The Presidents Ballroom airwalls contain two doors, one for the A/B airwall and one for the B/C airwall. It is theoretically possible but extraordinarily time-consuming to swap these doors to other locations in the airwall. Sections of airwall can be omitted, creating additional doorways. Airwalls cannot be closed on top of dancefloor. |