multiple keyboard

I've done it for years and years but only recently learned it's call "zaphod": two or more independent X displays running connected to the same machine, but each display being its own X11 environment. Nvidia has well supported this for many years and I use NVidia GPUs so works for me. However...

Potentially strange question, but I'm trying to customize a secondary keyboard on a FreeBSD machine. I have a standard keyboard, that I'd like to have behave as a "normal" keyboard. Then I have this bizarre hand-shaped keyboard, the Belkin n52te, that I'd like to use for controlling Open...