Board Thread:General Discussion/@comment-25540332-20141129230629/@comment-1267828-20180411220638

ScorpionBlood wrote: Is it possible to have multiple people in pm? I've had people inform me that it's possible but i'm not sure. You can, but special coding has to be installed on your wiki

I find it generally unstable though, multi-PM's using the coding tend to break down easily and fail. You've better off with a Discord server then.