Options on a multi-day event can be bought per session (one line and
ticket per session, priced per session, bookable until the session
starts). Sessions can have a capacity covering picked places and
whole-course tickets. Picked tickets only scan on their own session; the
register, certificates and reminders follow the sessions booked.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>