Campaign mode main objective, gather XP for win "Unlocks" does not make sense anymore, since everything has been "unlocked", so the extra points of EXPERT mode became meaningless.
You can't "tune" the EXPERT mode for add "aids" (well, some guys know a "way" to do this in MP).
What you can do is tune the REGULAR mode, turning off "aids" until the only difference between the two modes became the external vision - not available in EXPERT.
But labels (icons, floating waypoints...) is 8 or 80. Due the
"less keys is better" rule, to spare keys, all this is tied together.
Rest turn all off during your navigation flights and when see planes around turn on for "IFF".