LG G3 Vigor - Manual (Page 48)

Phone Basics 39
Adjust height of keyboard to show more of the screen and to control keyboard more easily.
1. Tap > Keyboard height and layout > Keyboard height.
2. Drag the blue bar to adjust the keyboard height.
To change the bottom row keys.
Touch and drag to add or delete keys or change the order.
1. Tap > > Settings > Language & input > LG Keyboard > Keyboard height
and layout > Bottom row keys.
2. Drag to add or delete keys or change the order.