Turning On the Developer Options Menu on Your Galaxy Tab S
The Developer options menu is hidden by default.
The instructions below are only for devices with Android 5.1.1 Lollipop.
To show the Developer options menu, navigate to and touch Apps > Settings > GENERAL > About device
Swipe to and quickly tap Build number seven times or until you see a message "Developer mode has been enabled."
The menu option will then appear under Settings > General > Developer options.