In the song list you can create a category there just copy the base game category code and edit it to what you want
Edit: I mean the song list in the files not in-game
I tried to add a custom character and it says "this program has stopped working" and when you go to the custom character list (ingame) it shows but it doesnt play any animations. I added a premade character and it worked but it didnt play any animations, only the first frame of the idle animation. Can anyone help? Also, secondary question. How do you add custom notes? I saw there was an update for support for custom notes, but IDK how to do it, and if you need coding can you tell me how to do it?