Hi Folks,
Thanks to all who replied. You are right of course, he is talking about the preset styles my mistake I'm afraid. However, I now have enough information from you all to keep him happy for several hours and if the Yamaha site is as good as this one, I'm sure he'll discover many other hints & tips on it.
Thank you all again, I knew I you would come up with the answer.
Aud (U.K.)