Thumbstick Flick?

How can you get thumbstick flick to work? Or basically when you move the Thumbstick Up and move it Down very fast or Left Right etc…

Cleverly set up gates and delays. You’ll want to:
open gate one whenever your joystick does not equal zero
Close gate one after about .3 seconds when your joystick equals 0
do some math to figure out what the opposing side of the joystick looks like (should be a range)
Step through the gate if you can get the joystick value inside that range within the .3 second timeframe
and that’s the flick.