Feature Requests

When placing multiple Affected Area floor objects on the same wall or floor, it would be great if they snapped to each other (or to the wall) when their edges are parallel. Right now, aligning them precisely takes a lot of manual nudging. A snapping behavior for parallel edges would make layout work noticeably faster and more accurate — especially when building up larger affected areas from multiple partial objects.

It would be helpful to be able to place an affected area on the ceiling in order to explicitly mark the ceiling with the area (not the floor).

It would be useful to define the level so that the area does not disappear under objects such as the washbasin, shower, or all other objects.