how to reorder DAB buttons so ID's match on 2 pc's?

[bmule]

I play on both a laptop and a desktop depending on where I am. I don't know the mechanics of why this is but the button IDs differ on these 2 machines. When I get the button layout I need on one machine it hoses it on the 2nd machine when I next log in on it. Is there a way for me to rearrange which buttons constitute a particular bar? I basically need 3 rows of 14 buttons and would like the button ID's to be consecutive (1-14, 15-28, 29-42) and the same on both machines.