This addon provide feature of a user to monitor other user's activity base upon user's group permission
It contains 4 block that is
Block of member who have visited your site in last x days
Block of member who have posted your site in last x days
Block of member on...
This suggestion concerns the member page and its subpages on XF 2 demo.
The current way of producing lists of cumulative numbers (most messages, likes, points) without the ability to specify time intervals is limiting.