Genghis,
Don't know if this is possible, and can't control a vst unless it is registered as an internal plug in Reaper. Same probably with Sonar or any other DAW.
Sensitivity to audio dynamics isn't possible as far as I know unless the response is within the effect.. Reaper will fail otherwise, but so will everything else.
I use Sonar for printed midi sheet music and Reaper for about everything else. I'm using less than 2% Reaper's capacity so have to defer this to better minds and more experienced users.
You may want to look at the automation lanes for registered vst/vsti plugs. There are several approaches and in depth complexity if you want or need to micromanage a track.
Take a Valhalla reverb with multiple knobs within knobs. Reaper automation will allow you to expand and control any parameter in real time. Powerful stuff way more than my surface level of involvement. You could in the extreme automate each kick but this would be time consuming, though it is doable if you have the time...
More experienced users should weigh in.
John