Customized Playback - Automating Volume Per Track

I’ve written my piece (a single flow) with the form A1, A2, B1, D.S. al Coda (both A sections are repeated, so A3 and A4), coda to end.

Soprano sax1 plays for A1, A2, B1 and A4. Sax2 plays only on A3.

Is there a way to use the automation (or another feature) in Dorico’s Play section to change volume for both of the Sax parts depending on the play form? That is turning the volume “on” and “off” for each instrument depending on the playback form? (Since I am using a D.S., the A section is played four times in total.)

Not yet. Perhaps later.