I'm fairly new to minecraft, so I've been doing a lot of experimenting and trying to figure thins out. I've done well so far, but this one has me stumped. I'd like to use the elevator track to create an elevator that goes between two floors (top and bottom). I can get the thing to go one direction, but then it gets stuck. It seems I can't find a way to turn off the redstone signal once a lever has been used to turn it on. Is there a simple way to do this, hopefully just using redstone and rednet cables?