The Breakout mode is fun to use when you're just playing around.
Advanced Paintball Electronics (APE) has a breakout mode in their "Rampage" programming, but they don't have an Etha board at the present time. However, they are in the process of making boards for the Planet Eclipse line of markers, and may be receptive to the idea of an Etha board.
Why don't you contact APE's tech at Support@GoApeOnline.com
and ask them if they'll make an Etha board. Who knows.....they may even ask to use your marker as a template, and send it back to you with a free "Rampage" board in it. It never hurts to ask.