Audio ducking should create TRACK keyframes not CLIP keyframes

I'd love this to be an option! I am, once again, trying out different music clips against an interview, and want to apply my ducking keyframes to the TRACK and not the CLIP. That way, I could easily delete the music clip from the track, drop a new one on there, and it would be ducked in all the right places. PPro does not need to know or care what clip I have on my music track - it just does the ducking at the TRACK level, regardless of what music is on the track. The ducking keyframes that PPro creates are in no way related to what's on the music track - they depend solely on the presence of dialogue and the settings in the Ducking panel. Talking of those controls - the "Sensitivity" is the wrong way round - setting it to High creates fewer keyframes, and setting it to "Low" creates a keyframe for even the briefest pause in the dialogue.

It would be wonderful if we had two "Generate Keyframes" buttons: one that says "Generate Clip Keyframes" and one that says "Generate Track Keyframes"...and did just that! Or at least if PPro had the ability to copy keyframes from a clip to a track, that would mean I'd only have to do the ducking process once (on the clip, as it currently does), then I could copy the clip keyframes to the track, then delete the keyframes from the clip. And then do whatever I liked with the clip(s) (eg. extending it via Remix or replacing the clip with another music clip) knowing that my ducking keyframes are safely tucked away on the track.

OR possibly even better - the ducking keyframes could be applied to a Submix track; that way, it'd be possible to route several tracks (music, FX, etc) to the submix track and they'd ALL get auto-ducked!

Upvote! Upvote! Let's get this happening!