Thanks for the fast reply! As an example, I’m booking Zurich Flughafen - Zermatt trip on 2.07.2024 at 11:45am.
The Flug.-Visp (IC8) leg is reservable with family coach. However, when adding seat reservation, there is no “zone” option. I can only tick the “Seat Reservation” checkbox. Clicking “Continue” button brought me to the checkout page with seat number assigned. I can only click “Buy now”.
This went the same when buying only the seat reservation, the seats are automatically assigned.
Best regards,
-tk