1. From the home screen, swipe down the Status bar.
2. Now tap the "Edit" icon and you should get a highlight "Quick Settings" menu.
3. Next tap, hold, and drag the icons you want to add to the "Quick Settings" menu from the lower section to the position you want them in. You can also move icons you don't want on this menu down to the lower section to remove them.
It can take some getting used to moving them back and forth. Remember you can reorder them as well. The maximum active icons is 10.
4. When you have placed all the icons where you want them, tap "Done".