Anyone can Help me to configure some controls on retroarch mGBA on recalbox ?

[Xyphoseos]

Hello, I want to configure some controls on mGBA but I don't know how to do...
I have an XBOX360 controller and I want it :

Rewinding : LT (without press hotkey)
Fast forward : RT (without press hotkey)

I want it for all my GBA game and if possible for GB and GBC too

And for my pokemon game (I know we can set control for precis rom)

Start = start
Select = Select
X = Start
Y = Select

How can I do all if it possible

I begin in Rpi3/emulation

Sorry for my bad english

 

[Xyphoseos]

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[Xyphoseos]

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