Apple has include a host of Springboard settings in iOS 7 that are not accesible to the un-jailbroken user. If you want to enable these hidden settings and start customizing your iOS device, you'll need the new free jailbreak tweak HiddenSettings7, from develper deVbug. You can find the tweak in Cydia's BigBoss repository.
Once you have installed it you will see a new button in your Control Center labeled "SpringBoard Settings" right under the "AirDrop" button (note: You won't see it if