Does anyone know of a tool that shows "Combined contributions" of a bunch of users (similar to how a warchlist/RecentChangesLinked shows the 'combined history' of a bunch of pages)

If the tool doesn't exist, could someone please see if it can be coded? We need it to monitor the edits of all students in the [[WP:IEP]]. It should take a page with a bunch of username links as an input and display a watchlist-like output.

I'd write it myself, but I'm quite busy at the moment.

Thanks,