Learn how to use Pattern Lock on your Samsung Galaxy Tab 3. These options are available when Screen lock is set to Pattern:
Lock screen widgets: Customize your clock and personal message.
Make pattern visible: Enable this option to make the pattern visible. If this option is disabled, the pattern is not shown as you swipe it.
Lock automatically: Set how long to wait before your device is locked after the screen automatically turns off.
Note
This guide will work on all Samsung Galaxy Tabs; including Samsung Galaxy Tab 3 7.0, Samsung Galaxy Tab 3 8.0 and Samsung Galaxy Tab 3 10.1.