It's complicated at first but once you get the hang of it, it gets easier.
I usually use a cal file to "split notes to tracks" so all the different kit pieces are on their own track. I only do this because I find it easier to control the over all volume of certain things though it is not necessary.
First solo either the overheads or the room outputs. You will have to adjust the volumes in the AD interface by selecting each kit piece and using the two knobs on either side of the kit piece. It takes a while to do this but once done, the volumes of each piece will fit for the overhead as well as the room mics. You can then add compression to those tracks and EQ.
Then all you have to do is the output tracks for each kit piece. Adjusting the EQ and adding compression.
I usually add compression to the overheads, room and snare. Using a short release for the overheads, snare and a long release for the room mics. I add reverb to the room mics and snare. Less for the snare and it varies for the room.
Good luck.