Show users working in a section in Activity Gadget

It has come up in a couple occasions that it would be useful to have the ability to click, double click, or through some other easy action, list the users that have been active in a section or on a page when looking at the activity in the Activity Gadget. This would really help provide a quick glance audit of not only how active a section or page is, but also who the users are doing the work.