Hacking Swap Stick control with buttons???

[SaagiBols]

so the game im playing doesnt use the Stick to control anything and you cant change the controls in game, to move around you got to use the (up,down,left,right) buttons and because i play it alot and have to move fast my left big finger hurts, coz those damn buttons are to low on the normal (non XL 3ds) and i got big hand...

so im wondering if there is any way to give those controls to the stick? so that the console thinks im pushing buttons when using it? any homebrew will do since im on 4.5 CFW, i also have all the SDK cia files maybe there is some tool in there that i dont know about?