How do I use the reduce screen size of one-handed operation on the Note4?

1. You can adjust the screen size and layout for easy controlling  of your device

 with one hand.

    Tap the Apps on Home screen and tap Settings

2. Select the Display and wallpaper

3. Select the One-handed operation

4. Select the Reduce screen size

5. Scroll the switch to the right direction to enable to reduce screen size

6. To set up your screen for One-handed operation, hold the device in one hand.

    Slide your thumb from the edge of the screen to the middle and back, in one quick motion.

    Now, you can use and control your device easily with one hand.

7. Tap in the corner of the screen and drag the screen to the size you want.

    To move the screen,  tap and hold the bar at the top of the reduced screen.

    To return to full screen view, tap the expand icon.