About Sectioned Body and Sectioned Boundary

The Sectioned Body and Sectioned Boundary components display only in live section views. Live section views are special section views of a 3D building model. The building objects are not converted into a section object but are retained as individual objects in the section. They keep their properties and display components and may be edited in the section. The display of the views exterior to the live section is changed to be Sectioned Body. This display can be semi-transparent or hidden.

Material Component Description
Sectioned Body the objects or object parts outside the section
Sectioned Boundary the outline of the cut line created by the section

Live section view with sectioned body (gray) and sectioned boundary (red)