Sheet ropes are essential for survival. Would it be possible add up/down controls so we can change direction while on a sheet rope? As of now, once we hop on that sheet rope, we are on it for the whole ride, better or worse. There are times when this would be a big help, be it for safety (didn't see that group of zombies at the bottom of the window) or convenience (oops, I forgot my saw/hammer/etc inside). And yes, I've clambered blindly down a sheet rope to my doom. Unless you can get a clear view of the ground at the end of the rope, there is always a chance of sliding down into a pile of flesh-eaters. Always bad news.