LG G Flex 2 User Manual page 31

Split Keyboard Using Gesture
The split keyboard feature allows you to use both hands to type while in landscape view. Each half of the
keyboard withdraws to the left and right of the screen. Place both thumbs on the keyboard and slide them
outwards in opposite directions.
To change the keyboard height:
Adjust height of keyboard to show more of the screen and to control keyboard more easily.
Basic Operations 23