Can't you just build what you want with Step Sequencer or Piano Roll View?
I am not sure I understand what you are looking for. It sounds like you just want some 1-2 bar series of drum hits that get louder, to be used ahead of your chorus.
If so, then just build one with midi data with Session Drummer, or Addictive Drums, or whatever you have that you would like to use.
If I missed your question, please explain a bit more - thanks.
Bob Bone