How to set Notification LED on Galaxy S4
Notification LED shows missed calls, unread text messages, new email, charging, low battery and more while the screen is off on Android Samsung ...
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When you use S Pen to work with your one of Galaxy Note series devices, you can literally do all the actions from typing, selecting, copying to zooming in or out. To zoom in or zoom out with S Pen, you just need to Double tap with your S Pen to activate the zooming mode, and then scroll it up to zoom out and scroll it down to zoom in. Double tap again to zoom out to actual size
See Also: Galaxy Note 3 Tips and Tricks