Among the possibilities of the OpenGL window:
Advanced color map options, for both atoms and polyhedra.
Advanced coordination(s) visualization options (total, partial, fragments, molecules).
Advanced coordination polyhedra visualization options.
Measurement tools.
Advanced layout system for atomic labels, measurements, MD box and model axis.
Image and movie rendering, including an intuitive interface to movie encoding that allows to record every interaction/modification made to the OpenGL window.
Advanced OpenGL configuration options.
For a complete description of these features see chapter 5.