You may getting a faster response and more responses on the maximus arcade section of the byoac board. If you have future questions, post here:
http://forum.arcadecontrols.com/index.php?board=46.0That said, to answer your question. No. That feature is not available in maximus arcade. Just favorites per system. IE, Nes favorites, MAME favorites, etc.
However, a workaround that would do what you asked for...
You could make the "batch files" section encompass all your favorites and do what you are asking, but that would require making a batch file for each game you want in your favorites. That would be somewhat more time consuming than simply hitting a button and having it show up, but it would work. I have had some MAME games, NES games etc in my batch files section and it works fine.