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Multi window, and then tap the

Settings

Display

Change the display settings.

On the Settings screen, tap Display.

Wallpaper:

Home screen: Select a background image for the Home screen.

Lock screen: Select a background image for the locked screen.

Home and lock screen: Select a background image for the Home screen and the locked screen.

Notification panel: Customise the items that appear on the notifications panel.

Brightness: Set the brightness of the display.

Screen timeout: Set the length of time the device waits before turning off the display’s backlight.

Daydream: Set the device to launch a screensaver when the device is charging.

Font style: Change the font type for display text.

Font size: Change the font size.

Multi window

Set the device to use Multi window.

On the Settings screen, tapMulti window switch to activate it.

Open in multi window view: Set the device to activate the Multi window feature when you open files from My Files or Video. Also, the device activates this feature when you view attachments in messages.