In theory this idea is great, but I can't imagine the OMMs updating the thread every time they're available and not available. They'd begin the find it tedious eventually and it'll become an unorganised mess.
You can look at the online list, or open all the OMM threads and see if the little circle next to there name is grey or green.
Don't think OP is concerned with them being available, just seeing which ones are online













