Feature Request: View Command History of Other Users

There are a lot of times where I need to monitor a programmers command line, but sometimes I need to monitor it in a bit more depth without being the same user (sometimes because I have an inexperienced programmer or sometimes to help tracking changes while assisting, and other times just to make sure a head electrician with an iPad didn't do anything weird) Currently command history doesn't let you target other users. It would be great if you could have command history by user or by system with all users showing up.