-<li>\subpage create_extrusion_page</li>
-<li>\subpage create_revolution_page</li>
-<li>\subpage create_filling_page</li>
-<li>\subpage create_extrusion_alongpath_page</li>
+<li>\subpage create_extrusion_page "Extrude" a 2D object by vector,
+creating a 3D object. </li>
+<li>\subpage create_revolution_page "Revolve" an object around an
+axis, creating a body of revolution.</li>
+<li>\subpage create_filling_page "Create a surface" from a set of edges.</li>
+<li>\subpage create_extrusion_alongpath_page "Extrude an object along a path",
+creating a more complex trajectory object.</li>
+