I am trying to do this, but am only able to link two of the three spaces. I have a two bedroom apartment and a single room, and a third listing as a three bedroom that includes both these spaces. When I follow the steps to link them, no matter what listing I choose it always starts with the two bedroom, which was my original listing. I can't get it to block off the single room, no matter what I do. Is there an algorithm that assumes a 'primary' listing? If so, how can I make it the 3 bedroom instead of the 2 bedroom?