Hello. I have a Global Pass. I booked a trip on the Caledonian Sleeper from London Euston to Inverness for May, 2025 using the room supplement option on the Caledonian website. This is available for Interrail Pass holders and covers only the sleeping compartment, not the train ticket. When I pull up this connection on my Rail Planner there appears a notice that seat reservations are required for this train. Since I have a sleeping berth, I don’t need a seat reservation. Can I ignore this notice or must I clarify the situation manually? Thanks.