Please enable spaces to exist on their own, even if the elements that make up their borders dissappear momentarily. Using walls from an architect model as room rounding is fine for when the spaces are created, but if the geometry of each space is stored in the model they are created in, the system is much more resilient if something crashes in the relationship between models, room bounds and links. When working with spaces, it's frustrating that all the work put into getting the spaces just right currently can disappear in an instant the moment something goes wrong with the other discipline models. This way, it could also be possible to edit the spaces' boundaries once and for all instead of relying on other disciplines to do their work properly, without having to manually draw space separation lines for every single problematic room. The whole link system isn't stable enough to trust as a permanent prerequisite for something else, we need a fallback solution.