HOW CAN I USE THE SPLIT SCREEN FUNCTION?

Method 1:

Touch the icon at the bottom of the screen, your recently used applications will be displayed. 

If the current application supports split screen, there will be a split screen operation prompt at the top of the screen: “Swipe to corner to trigger float window/split screen”. Follow this prompt.

Method 2:

Go to “SETTINGS” → “BUTTONS & GESTURES” → “GESTURES” → “SPLIT-SCREEN GESTURE”, then in the home screen or applications supporting split screen, swipe up with 3 fingers on the screen to activate split mode.