Vetra question about sening every keystroke.

How do you deal with every keystroke being sent to all 3 or 5 .. or 10, PC's? Is it possible to block some?

Yes, in game - change the keybinds on some machines but not others.

Or a simple KVM to modify which cpus get which input. There are lots of different ways. Read my FAQs - I address this there.

I've read your post about 3x and finally just now paid close attention to your diagram of KVM and multicaster. I assumed it was wired the other way.

I completely understand now.