Samsung Galaxy Note 4 - Manual (Page 57)

Motions & usability features
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Turning device over
Turn the device over to mute incoming calls or alarms, or to pause media playback.
If this feature is not activated, open the All apps screen, tap Settings → Motions and
gestures → Mute/Pause, and then tap the Mute/Pause switch to activate it.
Palm swipe to capture
Place the side of your hand on the screen and swipe it across the screen from the right to the
left or vice versa to capture a screenshot. To view the saved screenshot, open the All apps
screen and tap Gallery
→ → Album → Screenshots. After capturing a screenshot, you can
edit the image and share it with others.
It is not possible to capture a screenshot while using some apps.
If this feature is not activated, open the All apps screen, tap Settings → Motions and
gestures → Palm swipe to capture, and then tap the Palm swipe to capture switch
to activate it.