What’s up with the FAV function and soft-key at the unit?

AW: „FAV“ is an abbreviation for „Favorite“ and refers to a configurable function key, (see device manual under “Misc Setup” p.54) where a specific function can be assigned via the Setup menu. The “FAV” sensor key on the device front panel supports the following direct function assignments: CAM/NAVI/TUNER/EQ/SETUP/BT-MUSIC/BT/ DISP/IPOD/USB/HDMI/GAA/AV-IN/CARPLAY.