OMG! I just found some hidden features in iOS!

The problem with iOS is that they don't teach you some really cool and useful features, hidden in plain sight. Some of them I found lately:

- Flashlight can be turned off by a tap on the camera grabber on lockscreen, really thoughtful of the makers.

- Holding on to compose button in Mail opens the unified Draft folder for all mail accounts, very useful.

- In the Stocks in Notification Centre, taps on the red/green highlighted values change the mode and info, so frustrating that I did not know this one earlier.

- Tap in centre in Panorama Camera mode changes the direction of panorama, why wouldn't they let people know this one?

Not even sure if all of these existed in earlier versions of iOS. Any others like these people miss out?