Best practice is to separate drums on different tracks.
I typically send only the Kick, Snare and Toms to the parallel compression Bus.
Put your compressor in a Bus named "Parallel Compression".
Create a send for Kick, Snare and Toms. Feed the Send to the PC Bus.
Use the Buses Track Fader to achieve desired results.
This video shows how to do it with Aux tracks, but a Bus will do the same.