MAC synch question

I recently read an article in MACWORLD that said that in version 2.5 "if you draw a stationary character’s mouth shapes in advance, the program can place those shapes according to a soundtrack analysis and create an instant lip sync."

How do I do this as it seems like it might save me a great deal of “cut and paste” time?



Thank you very much. I am going to implement your input and then email you back with my success or questions!!