Any way to remap Right/Left Thumb Click for Menu

I have an arcade machine that I run retroarch, and it is absolutely awesome. The only issue I have is I cannot remap the right/left thumb click to say back/start or left/right trigger to get to the menu screen once in a game. Since I’m running joysticks, I don’t have right/left thumbsitcks, anyone with any ideas would be greatly appreciated. Thanks!

I’m not 100%, but I think the next version will have remapping capabilities for all buttons. The recent Wii builds have it, at least, so I would guess it’s the same for 360.

Thank you, here’s hoping it makes it in, simple remap to start/back would do it.