Mod Request: Retractable bridges.

[rawrfisher]

I would like to be able to have bridges that can be retracted or expanded by flicking a switch

[Greep]

I planned on doing this at one point, adding levers/switches.  Not going to happen for a while, though, unless someone gets to it first.

[Smexy_Vampire]

one of the bridge mods allredy had a draw brige with cuts off one square away and folds up leaveing pawsn unable to cross deep watter