[Admins]

Hmmm forwarding PMs to other people would not be hard to add, but that wouldn't be really more trustable than sending the PM history.
For actually sending the original content of the PM to the staff it would need to keep a copy of the last PM and then forward it to the staff if the user enters some special command or clicks on a button on the PM window. One problem might be that people would try to spam staff with that?