There is a setting on the Powercab that you can switch on which allows functions above F12 but I'd have to re-read the manual on how to do it. I've done it on my so I know it works! If I can find it I'll post on here but I think I found it through the magic of Google!
There's also a useful function, if you have the newer software, that allows up to 6 recalls rather than the 2 normally available.