Max Skills Cheat in The Sims 2 (Mac)? No Official Cheat—Workarounds Exist
No official cheat exists to instantly max skills in The Sims 2 Mac. The Mac version lacks the PC's cheat console (Ctrl+Shift+C) and uses a different codebase.
Faster Skill Workarounds
moveObjectsOn: Place multiple skill objects (normally inaccessible) for simultaneous practice