How do I bind a function to the mobile jump button? [Solved]

I have been trying the make a double jump system. I want this to support mobile so I can have a larger device group in game.

Rules: 1. I am looking for a way to bind it or an alternative. 2. I do not want a jump request answer, that sends me the request if they barely tap the keyboard

I have tested many ways, even looking for a mobile jump button keycode, seeing if its the spacebar keycode, I did try jump request and that's why I don't want it.

I have no code, no errors. I just need a simple answer of how I can do this.