I did that yesterday. I have a diagram where each note is exactly like you have suggested and yes some of them do repeat. My understanding of that is so you can reach it from other places with it being different on whether it is on the push or pull.
I have a book that seems to be very thorough on chords and will definitely take your advice on this.
That is my goal. I know it won't happen overnight but since I am really enjoying learning all of this on my new concertina I will get there. I am better player this week than I was a week ago so am making progress a step at a time and loving it the whole way.