There are far more workarounds in Rb than we sometimes think, and Mr. Bob here is a guru of them. I really have to dig in a bit and learn some of the finer points.

For true real ducking programs like Multitrackstudios, Reaper, Sonar have more options. If you have not read up on them take a look at their websites and do the research. In Reaper i watched an old video of Reaper 1, and it details the process, at MTS there is a piece in the manual about ducking very interesting.

What i bet is that with a third party compressor, and a little work we might find a workable solution in RB.

The purpose of mentioning the above DAW programs is not to promote them, but to give an idea what we need in RB to make it a little better.

HP Win 11 12 gig ram, Mac mini Sonoma with 16 gig of ram, BiaB 2025, Realband, Reaper 7, Harrison Mixbus 9 32c , Melodyne 5 editor, Presonus Audiobox 1818VSL, Presonus control app.