Sorry for late reply, between Christmas gigs and slowly but surely getting my Roland to replace my Ketron, I clean forgot to check back on the forum.
Firstly thanks to Diki for the tips. A lot to be going on with and I look forward to it. Many moons ago I started as an accordionist before switching to keyboards so my left hand is not the best but I try to play 3 finger chords as much as I can. I relish my reinvention, great tip about the D beam. I use the break button a lot !
I do have a ketron 6 switch foot pedal so I might look in to converting it to work on the BK9. Any tips on that procedure would be great.
Secondly to TedS
I use Styelworks XT Universal and convert SD1 patterns to Roland G70. Then I tweak on Bk9 - change drum sets , remove fret noise etc.
My midifiles are converted using Midifile Optimizer which has a BK9 configuration.
Hope that helps but if there's anything else I can help with just let me know.

Is there a way to make a playlist of Midifiles ?

Thanks again for getting back to me. I will update after the mad holiday gigs