What I'd ideally like is one of the buttons on the QuickScreen to rotate between 3 situations (this is an example but there may be other uses):
1. Stereo/Crossfeed off
2. Mono/Crossfeed off
3. Stereo/Crossfeed meier
I can write three .cfg files to achieve these things. I have done, and I've linked them to the Shortcuts menu using shortcuts.txt . That contains other controls as well.
It would be nice to find a way to create a file under the same rules as shortcuts.txt to put those three choices rotating on the same QuickScreen button. Unless it can already be done and I've missed something.
Can I say that if it's not straightforward, don't worry. I am so happy with Rockbox on my Sansa Fuze as is.