Rotate Fences

Hey, I've been using fences for a few weeks now,

I've used roll-up fences. They're pretty much the bee's knees. I have, unfortunately, run out of space on the top of my monitors, and swiping to the next window doesn't work on my dual-monitor setup (not that this is the problem anyways, I would like to do the following regardless of whether or not somebody is able to tell me how to deal with this). I would like to have a fence roll-up to the side of my monitor. In essence, I just want to rotate a fence that I already have. If this isn't a doable thing, that's okay, but I would like to know if this feature exists as of yet.