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@Tetsujin I believe F3 is just regular expose and not app expose. Also for which Operating System 10.6 or 10.7? I'm fairly certain 10.7 is correct although I don't have the Operating System in front of me.
I'm pretty sure they gave up with "Exposé" a while ago, now all you have is "Mission Control", on F3 by default [I don't have anything older than El Cap I can check on... & there's no way I'm going to hit 'Restore Defaults' to find out]
Yeah, sorry... doesn't exist any more, can't test. 1st link, option is still there, never tried it tbh. 2nd link, idk what the pic is telling me. macobserver.com/tmo/article/… has something on i.