One of the most annoying things in iOS is not being able to change your wifi network from the control center. Apparently this hasn't been fixed in iOS 11. At least it seems we can now add a quick access button to Settings.
That's interesting. You do that a lot? What's this about a quick access to settings? That's something I've wanted forever, but I don't see a way to add it?
As for the quick access you can customize control center in the Settings app. It doesn't make much sense to me that you can't access that customization directly from control center, but Apple works in mysterious ways.