Add gestures while the screen is off.

[Faizan_Qazi]

There should be gestures while the screen is off especially in the  Bixby Routines. Drawing a certain Gesture like a circle to activate/ deactivate flashlight quickly. 

[Chaitupic]

It will become too flashy idea

[jalapeno]

I agree! @Faizan_Qazi

OPPO and OnePlus do this and it is a great feature. Once you use it, it is quick and handy!