Samsung Galaxy Note 4 - Manual (Page 172)

Accessibility
172
Turning on the screen with the air gesture feature
Use the air gesture feature to turn on the screen by moving your hand above the sensor
at the top of the device. You can turn on the screen without pressing a key. When you use
this feature, place the device on a flat surface or hold the device securely to prevent it from
moving.
On the All apps screen, tap Settings
→ Accessibility → Dexterity and interaction → Air
wake up, and then tap the Air wake up switch to activate it.
Setting tap and hold delay options
Set the recognition time for tapping and holding the screen.
On the All apps screen, tap Settings
→ Accessibility → Dexterity and interaction → Tap
and hold delay, and then select an option.
Interaction control
Activate interaction control mode to restrict the device’s reaction to inputs while using apps.
1
On the All apps screen, tap Settings → Accessibility → Dexterity and interaction →
Interaction control.
2
Tap the Interaction control switch to activate it.
3
Press and hold the Home key and the Volume key down simultaneously while using an
app.
4
Adjust the size of the frame or draw a line around an area that you want to restrict.
5
Tap Done.
The device displays the restricted area. The restricted area will not react when you touch
it and the devices hard keys will be disabled.
To deactivate interaction control mode, press and hold the Home key and the Volume key
down simultaneously.