/*! \page free_faces_page Check Free Faces This operation highlights in red all free faces of the selected shape in the 3D Viewer. A free face is a face, which is not shared between several sub-shapes of the shape. \image html repair10.png Press \b Apply or <b>Apply and Close</b> button to publish the corresponding faces in the study. <b>TUI Command:</b> <em>GetFreeFacesIDs(Shape),</em> where \em Shape is a shape to be checked. \image html repair10a.png See also a \ref tui_free_faces_page "TUI example". */