Controls all user-facing text (registration form, buttons, errors, results). Hot-reloadable.
When enabled, a third CSV file <quiz>_NNNN.answers_with_users.csv is created alongside the standard answers and users CSVs. Each row is a submitted answer with user_id, username, and registration fields prepended. Takes effect on next quiz switch / quiz restart.
Registration
Uncheck the box to disable a field without deleting its name. Disabled fields are kept in the config and can be re-enabled anytime.