Wow. I have just bought a Faderport 16, and I cannot believe this cannot be done!? I use many analog synths with MIDI tracks and aux channels for audio input. I can mute and solo these on the Faderport... but I cannot arm them for recording???
Honestly, that's not a feature request, that's a bug report.
This breaks the Faderport workflow in a totally unnecessary place. Totally avoidable.
Can't belive this has only 5 votes. :-(