Re: Stuck in zeffo mission

Most elevators once unlocked have a floor pad in the center that when stood on activates them.  So you can call them to you with the terminal, or simply step on the pad to use it at either end.  If it is labeled a shortcut when opened, it is exactly that, a way to skip areas to get to a wanted area.  I haven't tried 100% of them, but I have used many and they they all worked this way.