Hi Alex,
I only play at home, but I use full pianist mode also. My arranger functions are via omb/laptop/digital piano. I like being able to trigger the chords anywhere on the piano, be it via left or right hand.

Hi Fran,
Jos I think has implemented something along the lines you just mentioned in vers8 omb. Haven't tried it out, but it might be worth investigating.

best wishes
Rikki