I'm certain something like this would have to be approached in a post-release OS update, considering how much is already on your plate

Some Kurzweils and the new Roland Fantom G have settings for the pitch wheel that allow you to bend a single note in a chord. I think three choices are available: high note, low note and last note.
On a rompler this is merely a novelty, IMO - questionable imitations of pedal steel guitars and such - but on a synthesizer, especially one with the depth of Solaris, I think it would be very expressive and useful. Imagine taking a thick, rotor-fied closed-voice triad and glissing the middle note down an octave, for instance.

How difficult would this be to implement?
My apologies if this functionality already exists in the plugin; my knowledge of it consists entirely of audio demos (props to Jimmy V) and screen shots.
Thanks for bringing this beast to life. I (and I'm sure the entire "Solarium") await September with great anticipation . . .
Jody