Thinking way ahead into the future for the next trip whenever that may be...
There's no special procedure for booking a split stay is there, like being able to have more than one hotel on the same booking? You literally have to make two bookings, the first one as a package probably with a 7 or 14 day ticket to cover the entire length of stay even if the hotel stay isn't for that long, then make a second room-only reservation. The second hotel isn't actually linked to the first in any way.
There's no special procedure for booking a split stay is there, like being able to have more than one hotel on the same booking? You literally have to make two bookings, the first one as a package probably with a 7 or 14 day ticket to cover the entire length of stay even if the hotel stay isn't for that long, then make a second room-only reservation. The second hotel isn't actually linked to the first in any way.