Change light bulb,Panosonic Microwave Model#NN-S768?

How do I change the light bulb in a Panasonic "the Genius 1100w model#NN-S768? It would seem it should be simple and obvious how you would access the light,but I have not been successful yet. I do have the operating instructions manual but it gives no clues for this.

Thank You,
John Majewski