Export chord symbols as audio on each track

Hello dear fellow Dorico users,

I am trying to export multiple tracks that contain chord symbols, and would like to hear the chord playback in the mp3 export. However, when I export the single files I hear only the written material, not the chord symbols

I put in the chord symbols with a chord symbol region. Playback works fine when I listen to the whole score, but once I Solo one instrument, the chords are not being played back.

Is there a way to playback/export the chord track together with each instrument that makes use of chord symbols? Would make sense to me…

Thanks very much,
David