lucaisstudio

I am trying to customize my ini files for my mods to get the menus assigned to the keys I want on my controller for gta v on pc. Most buttons are pretty obvious, A,B,X,Y, but my concern is things like R1,R2, and R3. Also, my controller has 2 extra buttons on the back I would like to map. I also notice that in the game standard.meta file the key bindings are in a strange format. 
<Item>
            <Input>INPUT_RAPPEL_JUMP</Input>
            <Source>IOMS_PAD_DIGITALBUTTON</Source>
            <Parameters>
                <Item>RDOWN</Item>
            </Parameters>
        </Item>
<Item> <Input>INPUT_RAPPEL_JUMP</Input> <Source>IOMS_PAD_DIGITALBUTTON</Source> <Parameters> <Item>RDOWN</Item> </Parameters> </Item> Is there a cheat sheet for both gta 5 and lspdfr that will help me with key configs?