Keybinds: Arrow keys and DFJK for opponent controls, and ERUI for player controls. If you want to chart a different song besides Disability, then replace the song and its code in the Stage/Backdrop. To clear the chart, click/tap on the “Clear” sprite. In case you want to remix: After you finish charting your song, delete the “Charter” sprite. Remember to change at least the sprites, the thumbnail, and the title. No change in the project will result into it getting reported. One way you can change characters: You can replace characters by going into their costumes and replacing the poses with your characters' poses. You can also change some of the animation code if you want it to look different. As for the arrows, you can also change the note skin of each arrow set now if you want to.
