Not all Airplanes are Clickable Cockpits, not even the A-10A.
A-10A, Su-27, F-15C, these are FC3 Planes and do NOT have an Clickable Cockpit.
Could you link that Video?
Not sure bout the Su-33 atm tho.
The P-51 Mustang (and the TF-51D too) have Clickable Cockpits.
Mind-Kicker: Every FC3 doesn't have an Clickable Cockpit, AFAIR.
(btw: currently got the Mirage 2000C, my first clickable Cockpit Plane, and absolutely love it ^^)