The top of the Notifications panel includes a Quick settings bar. The icons in this bar provide a quick, convenient way to change settings without accessing any apps. If you set more than five icons on the bar, swipe left and right to scroll through the list.
You can set the order of the icons displayed in the Quick settings bar as well as which icons are displayed.
Open the Notifications panel, then tap the Edit icon (at the right side of the Quick settings bar).
Drag one of the icon handles at the right side of the screen to move its icon to another position in the Quick settings bar.
Checkmark each of the items you want to appear in the Quick settings bar.
Changing the checkmarks reorganizes the icons in the Quick settings bar.
Tap the Back Button to return to the Notifications panel.