Organizers only. Everybody else, go sign up.
Go to the sign-up page
Tap ✓ when someone's done their set. Drag ⠿ to move people around.
Nobody yet. Open sign-ups and put the QR code somewhere people can see it.
Set up the next show. Everything else in your settings stays the same.
Sign-ups close and the running order goes back to hidden. You can bring this list back from Past shows any time.