Can you give me some tips on getting some codes

[CristobalSnake]

Hello, nice to meet you.
I present my problem, and know if you can help me a little.
The game I want to modify is "Star War Battlefront elite squadron"

What I want to do is get the code of a player action.
This action is lost when changing the gamepad mode.
I mean, in gamepad 1 mode, the player can crouch down.
But on gamepad 2, this function disappears.
What I want to do is get this function and map it to some button in PPSSPP.
But still having the gamepad 2 mode activated.
How can I get the actions by pressing a button?

I am testing with cheat Engine.
But I feel lost.

Thanks a lot.