Reassign buttons?

I have two wireless devices from Ascher Racing.
My problem is that while I can easily swap rims, both devices have buttons mapped to the same number (but in different positions.
So where my pit limiter button is on one, is somewhere totally different on the other.
I like to use JoyToKey to assign all buttons to keystrokes, but again this can’t be done as both devices are seen as using buttons 33-60.
Is there anyway to change one of the devices to use buttons 61-88 for example?