Although for speed, as I don't use the short tap of the knob for anything other than source change, the popup is set to Next Source. This means a quick double tap of the knob changes between mp3 and tuner - just works faster than the very long press.
_________________________
Rory
MkIIa, blue lit buttons, memory upgrade, 1Tb in Subaru Forester STi
MkII, 240Gb in Mark Lord dock
MkII, 80Gb SSD in dock