How to program string tremolo in Doriico to match VSL tremolos

Hi! Is there a way to program Dorico to NOT play back tremolo in strings as simulated, and program so it matches VSL Synchronised strings library (sampled tremolos)?
As I figured out there’s a workaround using the letter ¨z ¨ , butt then you have to move every letter up to the stems in Engrave mood. There must be man easier way.

If your expression maps have tremolo switches to trigger the VSL samples, Dorico will use them.

I checked and there are tremolo with the right KeySwitches in the Expression Map, provided by VSL. But it doesn’t work at all. Dorico seems to block that function and plays back with the boring simulated sound.

I can’t help with VSL, but can attest that it does work!
Perhaps it’s a combination of techniques problem?