iOS 11 lets you customize the redesigned Control Center so you can change the settings for the things you do most. At least up to a point.
You can’t make changes to Airplane mode, cellular, wi-fi, Bluetooth, audio playback, Lock screen rotation, Do Not Disturb, screen mirroring, screen brightness, and volume controls. However, you can add or remove Flashlight, Timer, Camera, Home, Screen Recording, Calculator, Do Not Disturb While Driving, Notes, Wallet, Accessibility Shortcuts, Alarm, Apple TV Remote, Guided Access, Low Power Mode, Magnifier, Stopwatch, Text Size, and Voice Memos.
To customize the Control Center, tap on the Settings app, then tap Control Center. You’ll have the option to disable or re-enable which apps appear via plus and minus signs.