Are you sitting on unused Mac function (fn) keys on your keyboard? Here's how to remap Mac function keys and repurpose them to trigger useful actions.

The function keys on your keyboard are the most powerful computer tools that you're not using. We're going to fix that.

The Fn key is also known as the function key, and on Windows and most Mac keyboards, you'll find it located in the bottom-left corner of your keyboard.

The Fn key is also known as the function key, and on Windows and most Mac keyboards, you'll find it located in the bottom-left corner of your keyboard.