need help with remapping

Hi guys.
Yesterday I upgraded my VCI 100 firmware to 1.4 with the matching TSI file good stuff:)
Anyway I need help on just one thing. I woud like to remap My VCI 100 but only just one button. I dont use the scratch button which means I dont use the CDJ mode. I would like to use my scratch buttons as 'MASTER' buttons so that everytime I mix between songs I don't have to reach for the mouse to master which track is mastering the BPM and that I can do everything from the VCI 100.

Can anybody help me out over here? Can anybody modify a TSI fie for me please?

Thanks