so i've been trying to do this but i'm not sure if it's even possible
a switch that has the following effect: while off, all the doors in the base are openable from their current location; while on, noe of the doors are openable at all
i've been thinking a XOR gate with some proximity detectors, but for some of these things i just don't have a place to put the detectors themselves...
edit: from what i can see the proximity scanners are the best solution, though their range is a bit too high for my tastes
edit: thank you for your contribution to the Meme Band, mr Maxwell and mr Lando - your instruments will be used for good!