elements.</li>
<li>\subpage symmetry_page "Mirror" the mesh
through a point or a vector of symmetry.</li>
-<li>\subpage double_nodes_page "Duplicate nodes".</li>
+<li>\subpage double_nodes_page "Duplicate nodes" to emulate a crack in the model.</li>
<li>Unite meshes by \subpage sewing_meshes_page "sewing" free borders,
conform free borders, border to side or side elements.</li>
<li>\subpage merging_nodes_page "Merge Nodes", considered coincident
<li>\subpage uniting_set_of_triangles_page "Unite several adjacent triangles".</li>
<li>\subpage changing_orientation_of_elements_page "Change orientation"
of the selected elements.</li>
+<li>\subpage reorient_faces_page "Reorient faces by vector".</li>
<li>\subpage cutting_quadrangles_page "Cut a quadrangle" into two triangles.</li>
<li>\subpage split_to_tetra_page "Split" volumic elements into tetrahedra.</li>
<li>\subpage smoothing_page "Smooth" elements, reducung distortions in