Samsung Galaxy S8 Active User Manual page 25

Pinch and spread
Pinch the screen using your thumb and forefinger or
spread by moving your fingers apart.
Pinch the screen to zoom out while viewing a
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picture or a web page.
Spread your fingers on the screen to zoom in
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while viewing a picture or a web page.
Learn about your device
Common options
The device uses basic command options to perform
common actions.
More options: Tap to view more menu options
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for a screen.
Delete: Tap to select items to delete.
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Share: Tap to select items to share, and then
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choose a sharing method.
Edit: Tap to customize the screen.
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On/Off: Tap to turn the option on
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Menu: Tap to view available options for
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the field.
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( ) or off ( ) .