How to Disable S Voice on Galaxy S7 (Edge) | Turn Off S Voice
Google Now and S Voice are your default assistants in Galaxy S7 (Edge). To make S Voice stop and use Google Now as your only assistant, you need to ...
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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