How to Work with Mission Control
1 Get an overview
To open Mission Control, swipe up with three fingers on your trackpad or double-tap two fingers on a Magic Mouse. All open windows in the current workspace spread out. Reverse/repeat the gesture to return to the desktop.
2 Switch apps
Apps that are minimized keep running, so videos continue playing and web pages update. To switch to an app, click its Dock icon to bring it to the foreground; if its window is minimized, this should restore it.
3 Add a new space
Move the pointer to the top bar to reveal your spaces. To add one, click the + at the top right. To delete one, put the pointer over it and click the X. Click one to go to it and leave Mission Control, or Alt-click to stay in this view.
4 Move apps around
To move a window to a different space, drag and drop it onto an existing space’s thumbnail in the top bar. Or, drop it onto the + symbol at the top right of Mission Control to make a new space and put the window in it.
5 Add workspaces
Drag a window to a gap in the top bar to switch it to full-screen mode. Full-screen apps can be accessed via Mission Control or using the å+† app switcher. Drop another window on one’s space to enter Split View mode.
6 Tweak settings
To customize Mission Control, go to > System Preferences > Mission Control. Use the two pop-ups labeled Mission Control to set your own mouse and keyboard shortcuts to the feature; this is helpful for non-Apple mice.
7 Dashboard settings
Also in Mission Control’s prefs, you can set Dashboard to display as a temporary overlay or a space in its own right, and which function key reveals it. You can set a more exotic key combo in the Keyboards pane, under Shortcuts.
8 Change shortcuts
Also in Mission Control’s prefs, you can set shortcuts to move windows aside and see the desktop, and to view only the current app’s windows from all spaces. Hold one or more of ß, ≈, Alt, and ç to use them in a shortcut.
> Group by app
By default, windows in Mission Control are spread out without overlaps, but you can check “Group windows by application” in Mission Control’s prefs, which stacks them.