I have a situation where I have a live broadcast studio that is running 4 PCs at the same time, each running different applications. From my home office, I can connect to all 4 at the same time with one PC with 3 monitors. I connect to the 3 main PCs and put each window on a different monitor so I am looking at them all at the same time. It appears that I can control each PC by mousing over the appropriate window for a short time. But after a while, when I control one of them , then mouse over to another PC, the arrow cursor turns into a little dot and will not control that PC. Is there a way to quickly pass the mouse from PC to PC and maintain control? Can it be done at all? Thank you.