/*!
\page create_complex_obj_page Creating Complex Objects
New entity -> Generation submenu allows creating new geometric
objects by modification and multiplication of the existing objects:
- \subpage create_extrusion_page "Extrude" a 2D object by vector,
creating a 3D object.
- \subpage create_revolution_page "Revolve" an object around an
axis, creating a body of revolution.
- \subpage create_filling_page "Create a surface" from a set of edges.
- \subpage create_extrusion_alongpath_page "Extrude an object along a path",
creating a more complex trajectory object.
*/