The information in this article applies to:
I need to be able to span windows across more than one floor, but when I go to adjust them in a 3D camera view, they stop. How can I span windows across more than a single floor?
Many objects have restrictions placed on their movement by their own properties or Moving Objects specification settings. Other move restrictions are activated by the Snap Settings. Architectural objects, for example, bump into other 3D objects as they are being moved when Bumping/Pushing* is enabled and CAD-based objects may be set to stop at other CAD objects or at walls.
The ability to turn off the Bumping/Pushing feature independently is only available in the Home Designer Pro and Chief Architect versions of the software.
These restrictions can be overridden when necessary by holding down the Ctrl key while dragging to move an object.