CAD Edge — One edge of an imported CAD Body, chosen by picking it in the viewport.
CAD Face — One face of an imported CAD part, with its surface parameterization: a face of a body, or a surface saved as STEP (the part's Faces).
CAD Faces of Body — Lists the faces of one CAD body, or of every body in a part (body by body, in file order).
Solid Between Faces — Builds a closed Solid between two CAD faces: both faces are kept whole, and their outlines are joined by a straight wall — an insole between its foot bed and its sole, a panel between its two skins.