Is it possible to make a high% category with permission to use item and shrines? At first I think one category is enough, with the name of any high% character (Any character). Anyway, only a few characters change bosses in the game - Cadence, Melody, Aria, Nocturna. Yes, it's random, collect the desired item, but in all zones mode, all items are open. Speedrun will also depend on the randomness and your knowledge, timings, when you need or do not need to buy items. There was also an idea to add a separate header between the Platform and the date. Character.

I know this reply is late, but what you described is literally the exact description of any% runs, which are tracked just fine by the in-game boards. Just use those.