Question : Using one keyboard and mouse with two computers at the same time

Hey all,
So, my setup includes 4 screens currently connected to a Mac. Basically, what I want to do is have one screen showing another computer's image, but be able to use one mouse and keyboard to control both computers. Here's the catch... I don't want to have to use a KVM or push a button to switch between the computers. I want to be able to have all the screens working displaying the image of the computer they are connected to, but move the mouse between them... sort of as if I was using VMWare or something on one of the monitors.

Is there any hardware or software that can do this?

Thanks!

Answer : Using one keyboard and mouse with two computers at the same time

The KM2M was made in two versions.  (-L or -V)

I don't know which one version of the mobo you have so I have attached both user manuals.
The manual includes the pinout for all the information your requested.

Good Luck with your build.