Hi @AlanP,
this function will be included in the next update of the script (fp-wizard) for the FaderPort, which I will publish soon.
There will be a new mode (called “Audio Mode”). This will allow you to adjust e.g. the volume (= gain) and also the lengths of fade-in and fade-out for an audio event with the knob. It’s already working for me, but I’m still testing it for a while before the publishing.
Best regards
CKB