To use them, you'll need to press and hold the Fn key on your keyboard, which will make the F keys appear in the Touch Bar. From there, you can select the key for the desired function.

One thing I've been wondering about: how do people use function keys? It seems fairly obvious that Apple doesn't care about function keys, as they just made them do system stuff such as changing ...

Function Keys to Operate a Monitor & LCD Projector. When using a projector to present information to colleagues and clients, there are times when you may not want your desktop projected for ...

Function keys that enable convenient features like instant browser refreshing or screenshotting pages are lost unless you hold down the “fn” key on your keyboard.

I'd like to be able to use my function keys without needing the "fn" key itself when I'm bootcamp-booted into Windows. Any ideas?

How to Invert FN Keys in Ubuntu. Ubuntu's function keys are often set up to perform both a default function and a second function that is set up by the user or the keyboard manufacturer.