Also you can lock the mouse to the primary screen. - David Lynch

Now, if I could figure out how to have two audio output streams, without using two computers. So my Daughter could watch Netflix on headphones, while I watch Youtube on headphones. (or play music on the speakers, and watch youtube on headphones.) - David Lynch

Well, I found one way to do it, play static audio files through windows media player, with audio output specified, and all other audio through default audio. - David Lynch