Music Finder question

I have just received delivery of a Yamaha CVP709. Fantastic piano! As I am new to this sort of instrument I am having a few teething problems in finding my way around the various sound options. One example is the music records in Music Finder. As instructed, I downloaded the updated version with a USB stick and found that the download was exactly the same as the selection installed on the instrument. I watched a review on UTUBE about using Music Finder on a 709 and on the review, the musician found the song title "Isn't She Lovely" and went on to accompany the tune.I have tried various ways to add new titles to Music Finder but I always draw a blank. If anybody has any ideas on how I might overcome my problem, this inexperienced Clavinova user would appreciate some advice. Regards, ACR