Has anyone come across, or made themselves, a DMX to CA-8 interface? ie: Replicate the controller functionality from FreeStyler? Ideally, I would like a little black box with DMX in and out and maybe four jack sockets that could go to each type of fixture. So each of the four "controllers" would have it's own DMX channel that could be built as a fixture in FreeStyler. The Three buttons of the conrtroller could then be simulated on-screen.
The crude way would be to hack a controller and use DMX controlled relays to activate the buttons!
Any help would be much appreciated

Cheers,
Andrew.