Shrink screen for one-handed use
You can temporarily shrink your screen to make it easier to use with one hand.
To enable this gesture:
1. Go to Settings > System > Gestures.
Or, open the Moto app and touch > Moto Actions.
2.
Touch Swipe to shrink and turn it on .
To shrink any screen, swipe from the center down to the bottom left or right corner of the screen.
To return to a full-size screen, touch anywhere in the black area around the small screen.
Settings : System : Gestures 257