I just added a supermidi track to the melody track of a Real Track Style song (all RTs).
And I added a custom midi style to the soloist track.

Workflow: Right Click on the empty track in the mixer (Patches). Select options... done

I am now convinced it is workflow. There is a right way to do it and a wrong way.

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Dan, BIAB2024, SoundCloud Win11, i7(12thGen), 32GB, 1TB SSD(M.2 NVMe SSD), 2TB Libraries, 1 TB(WD-Black), 2TB SSD(M.2 NVMe SSD)Data, Motu Audio Express, Keystation 61, SL88 Studio, Reaper