You can use the top row of keys on your Apple keyboard as standard function keys or to control built-in Mac Features
Change Keyboard Options
- Select the Keyboard Tab
- Check the box next to "se all F1, F2, etc. keys as standard function keys.
- Press OK.
Your function keys will now act as standard function keys. If you wish to use the function printed on the key (brightness, volume, etc.) press the function key on your keyboard as well as the appropriate function key.