Default room display

Thank you for making it possible to rearrange rooms in relation to each other, as well as copy an existing project to a new one.
This makes things much easier.
However, there is still a problem when reusing an old project for which the rooms were not originally created in the correct order.
When copying this old project and reorganising the rooms in the new one, the booking still opens by default on the first room created, which is not the one that should open first after the reorganisation (which is the whole point of the reorganisation).
How can this flaw be overcome?