I've been looking for a way to broadcast keystrokes to multiple computers at the same time.

Here's a video example of what I'm trying to do.

http://tinyurl.com/ltfgh

You'll notice the window on the left is the master and the window on the right is the slave. With the ability to broadcast keystrokes, I could put the slave computer on /follow (unbind movement keys on slave computer!) and then I can play normally on the master computer. The slave will follow me around and whenever I use an ability like Fireball, the slave computer will also execute whichever ability that is bound to that key.

Can Multiplicity do something like this?