I have connected my XPS desktop to a Sony tv in the next room and have found that my wireless mouse will work in both locations. I would like to watch videos on one side of the screen on the tv while someone in the next room will use the left side of the screen for email or whatever at the same time. So I would like to have a mouse in each room both using the one cursor. Leaving aside practical usage issues, technically is it possible just to buy another mouse to use with the original mouse setup?

Thanks