When I'm trying to go through my maps playing solo and trying to get pp, I see lots of songs that I have already played and there is no need for me to play it. I think it would be helpful for the option to categorize songs by, "Not yet played" and, "Already played" so that I can grind pp. If you need me to be more specific, for whatever reason, tell me.
EDIT: I found it in "By Rank Achieved" so, nevermind.
EDIT: I found it in "By Rank Achieved" so, nevermind.