Samsung SM-F946W User Manual page 24

Getting started
Continuing apps on the cover screen
Set your device to switch the apps you are using on the main screen to the cover screen
when you fold the device.
Open Settings, tap Display → Continue apps on cover screen, and then tap the switches
of the apps you want to continue using on the cover screen.
When you fold the device while the app is running, the screen of the app will appear on
the cover screen.
Some apps may not support this feature.
Mirroring the cover screen
Use the same layout on your cover screen and main screen. Changes to one screen will
be reflected on the other screen.
Open Settings and tap Home screen → Cover screen mirroring → On → Apply.
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