Samsung Galaxy S7 User Manual page 166

Appendix
Interaction control
Activate interaction control mode to restrict the device's reaction to inputs while using apps.
1
Launch the Settings app and tap Accessibility → Dexterity and interaction →
Interaction control.
2
Tap the switch to activate it.
3
Press and hold the Power key and the Volume Up key 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 device's hard keys will be disabled. However, you can enable functions for the
Power key, Volume key, and keyboard in interaction control mode.
To deactivate interaction control mode, press and hold the Power key and the Volume Up key
simultaneously.
To set the device to lock the screen after deactivating interaction control mode, launch the
Settings screen, tap Accessibility → Dexterity and interaction → Interaction control, and
then tap the Use screen lock when turned off switch to activate it.
Direction lock
Create a directional combination to unlock the screen.
1
Launch the Settings app, tap Accessibility → Direction lock, and then tap the switch to
activate it.
2
Drag your finger up, down, left, or right six to eight times, and then tap CONTINUE.
3
Draw the direction combination again to verify it and tap CONFIRM.
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