VHorns 'scoop' Xmap

I didn’t find this mentioned anywhere, but is it possible to make an expression map add-on for scooping into a note? I think it’s actually a note-off message if i’m not mistaken but can’t for the life of me figure out how to make it work.

These are the saxophones btw.

I wonder whether it is the same library Bollen uses, and he explained that he used a hidden staff with all the key switches notes there, so there is way more control over those than with the expression map (where you cannot offset things locally).

Aah yeah I forgot about that possibility. Brilliant.