The title says it all. Airlock Frame: ___ | S ---- The S would be the switch block. Right-clicking it will open/close the airlock. It is as simple as that. Right now the airlock system is really annoying. The levers are seriously not for this, and i believe making Dual levers would just complicate it too much. Build a frame of airlock frames, then replace one of them with Airlock Switch Block, and tadaa! Right click it to close/open. Recipe: Airlock Frame+ 2 levers right and left.