MIUI has apparently been ported to the One: http://forum.xda-developers.com/showthread.php?t=2352742
. Don't know whether it supports the feature (it's already a long thread, and I've only read a few posts), but it's there to try.
Root alone doesn't give you features like this, which as IB says need support built into the kernel. What it does give you is the ability to install such a kernel once someone writes one. I guess the best is to keep an eye out for a custom ROM saying that it supports it.
I guess Sammy must have added that, as it's not a stock android feature to my knowledge.