Many apps on your Mac support Split View, which lets you work in two apps side by side at the same time.

On your Mac, move the pointer to the green button in the top-left corner of the window, then choose Tile Window to Left of Screen or Tile Window to Right of Screen from the menu that appears.

On the other side of the screen, click the second app you want to work with.

The Split View is created in a new desktop space.

In Split View, do any of the following:

Show or hide the menu bar: Move the pointer to or away from the top of the screen. If you deselected the option to hide and show the menu bar in full screen, the menu bar is always shown.

Show or hide the Dock: Move the pointer to or away from the Dock’s location.

Show or hide a window’s title and toolbar: Click the window, then move the pointer to or away from the top of the screen.

Make one side bigger: Move the pointer over the separator bar located in the middle, then drag it left or right. To return to the original sizes, double-click the separator bar.

Change sides: Use a window’s title and toolbar to drag the window to the other side.

Use a different app on one side: Click the app window, move the pointer over the green button in the top-left corner, choose Replace Tiled Window, then click the window you want to use instead. If you decide not to replace the current window, click the desktop to return to it.

Move an app window to the desktop: Click the app window, move the pointer over the green button in the top-left corner of the window, then choose Move Window to Desktop. The app is displayed on the desktop.

The app that remained in Split View is now full screen in its own space; to return to it, press Control-Up Arrow (or swipe up with three or four fingers) to enter Mission Control, then click the app in the Spaces bar.

Use an app window full screen: Click the app window, move the pointer over the green button in the top-left corner of the window, then choose Make Window Full Screen.

The app that remained in Split View is now full screen in its own space; to return to it, press Control-Up Arrow (or swipe up with three or four fingers) to enter Mission Control, then click the app in the Spaces bar.

If you’re using an app full screen, you can quickly choose another app to work with in Split View. Press Control-Up Arrow (or swipe up with three or four fingers) to enter Mission Control, drag a window from Mission Control onto the thumbnail of the full-screen app in the Spaces bar, then click the Split View thumbnail. You can also drag an app thumbnail onto another in the Spaces bar.

To use apps in Split View on other displays, make sure the “Displays have separate Spaces” option is turned on in Desktop & Dock settings.