In 3D, the Magic Wand feature works as in the Floor Plan, but instead of using only the top view of the elements, each element is considered the way it lies in space. When searching for the contours of the new element, ArchiCAD will only look at the elements that are actually intersected by the clicked plane. The clicked plane is always the horizontal plane through the clicked surface point or through the User Origin (e.g., when clicking inside polygon walls or beams into space).