bbman...
...
ie...da tada tadadadadadada...right ??
in swing jazz vibe...
to summarise..whats happening here ??...answer essentially we have used a modified playable real track driven by the piano roll triplets you wanted...per your image.
fyi playable tracks are a very nice feature now in bb....
ie essential!y now ...with a bit of work...the song creator now can control what the session muso is doing....see pg manual n vids for further info on playable real tracks rtc etc.
maybe youll think my method is rubbish...dunno...buti found it the only
way rather than useing microhords feature....
....its catchy...da dada dadadadadadada...
very cool result imho....
hth...me a happy lad...i hate to bebeaten by this stuff.
is it a workaround ??...some might think that...but only solution to the dilemma imho.
happiness.
om 🇨🇦🇨🇦 🇬🇧🇬🇧
"ie...da tada tadadadadadada...right ??"
Yes that's it.

Thanks for going the extra distance on this muso!
Rather than me trying to recreate everything you did, for the time being,
can you upload your solution (a file) somewhere where I can listen to it first?