I would like to suggest plex door computers. I know it sounds odd, but this kind of computer could select two or more plex door "groups" and program them so that they always open in an alternate way, useful for airlocks, as one day there might be possibility of depressurisation. Among other uses, synchronising hangar doors with said airlocks, operating doors remotely (Useful for big hangars), etc...
Any other ideas for more uses, please feel free!
Any other ideas for more uses, please feel free!