This would be useful to have next to the all rooms button.
Perhaps let it refresh each 30 or 60 seconds... :-)
For those of you still following this, you might be interested in the answers to this question:
There are a couple of suggestions that might be of use.
30 or 60 seconds is IMO way too often for something that by definition is data you aren't avidly watching at that moment. Even 5 minutes seems overly aggressive. It has come up before, though, and was deferred. I'll ask around, to see if that has changed...