Mission Control

Mission Control, formerly Exposé, is a feature of the macOS operating system.

Mission Control lets you view all open windows with a single keystroke: it unshuffles overlapping windows on your desktop into an organized tile view, so you can quickly locate and switch to any window or get to any file on the desktop.

If you like to work with many applications and documents at the same time, you probably spend time each day poking through your open windows just to uncover the one you need at the moment. With one keystroke, Mission Control instantly tiles all your open windows, scales them down, and neatly arranges them, so you can see what’s in each one.