Samsung Galaxy Tab Active Pro User Manual page 92

Apps and features
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On the right window, swipe left or right to select another app to launch.
To launch apps not on the list of recently used apps, press the Home key or the Back key
and select an app.
Adjusting the window size
Drag the bar between the app windows to the left or right to adjust the size of the windows.
When you drag the bar between the app windows to the left or right edge of the screen, the
window will be maximised.
Using the Multi window tray
You can quickly access the apps that you want to run in the split screen view.
1
Swipe to the left on the screen.
If the Multi window tray does not appear, launch the Settings app, tap Advanced
features, and then tap the Multi window tray switch to activate it.
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Multi window
tray
View all apps.