reserving seats for Swiss journey of Lucerne to Milan to match seats for Italian portion
I tried to buy tickets from Lucerne to Milan for late June, and I was unable to buy it from SBB even though the route was showing up (not sure if it was because my foreign credit card was not being accepted or because it was more than 60 days out). So I booked the trains from Chiasso to Milan via Trenitalia and have seat assignments because I really needed the non-stop train from Lucerne to Milan at that particular time.
I know you can book seat reservations for the Swiss journey, though it’s not mandatory. But I’d greatly prefer to be able to sit in the same seats with the family and our luggage for the entire journey. Is there a way to request a specific train car or even seats on SBB to match our current seat reservations for the Italian portion? (currently, it looks like you can just request general things like “open car”, “corridor car”?)