User blog:Tesla Man/Multi-PM?

I've noticed multiple wikis using a Multi-PM feature, and i've been looking around and trying to find ways to add it to my wiki, http://epicrapbattlesofhistory.wikia.com/wiki/Epic_Rap_Battles_of_History_Wiki

It would be a wonderful new feature for our Mod Meetings instead of us trying to find a time when no non-mods are on

can anybody tell me how?