It is in the same row of keys as the functions keys and I don't use those.
And those keys are half the height of the character keys. But, I do use the Esc key to leave full screen mode for videos.
Also, the power on/off is the right most key in that row of keys on my MB Pro.
Alex
"There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge."
-- Isaac Asimov