As an addition to the original post:
I think a group might not be the thinks I’m looking for since tracks that are assigned to a group are still assigned to the main LR. And what about channel levels? Is the routing to a group pre or post fader?
Maybe a stereo aux is a better option? Sending all drum tracks to a stereo aux and then sending the stereo aux to the main LR? I suppose I can send post channel EQ and compression?