You’ve heard these sayings, right? ‘You don’t know what you don’t know.’ And, ‘Ignorance is bliss.’ I found a clever Mac utility that dissolves both. FunctionFlip is free and solves a problem you didn’t even know you had. Every MacBook user has a bunch of Function Keys lining the top of the keyboard, left to right. Those keys can be assignable function keys or media keys which control screen brightness, sound volume, and iTunes.
FunctionFlip gives you another layer of control so function keys can be turned back into regular keys, or the reverse. Even better, flipped keys can perform their standard function when the Fn, or function key, is enabled. Setting up which keys to do what is handled with a simple toggle list and options.
FunctionFlips reason d’être is to disable certain functions on the function keys and give you more control over what each key does without mucking around in OS X’s Preferences. You’ll need to turn on Assistive Devices in OS X, but that’s easy.
FunctionFlip is useful and priced right, though so far it has a problem with key repeats in OS X Mavericks (likely to be ironed out by the release version).