Well Santa visited me

and he'd actually read my letter and I got the datatool digigear indicator. Thing is, has anyone ever fitted one of these things and programmed it?
The speedo is driven by the front wheel so I'll need to programme it while riding along the road. I only got the SV in September (a K5) after finally getting ride of my aging GPZ, so I haven't had it apart yet, so I've no idea where the ECU is.
Anyone a DIY genius?