I sure hope they have that convenient groove button. What's great about that feature is that with many styles, it puts a syncopation in a style where there is not and takes away the syncopation of a style when it is there, making many styles, which would otherwise be unsuitable for a song, perfectly suitable. I only use the feature two or three times per show, but it is very useful.
What a shame if they don't include this feature. I wish Yamaha didn't include so many sequencing features and included more buttons pertinent to performance like the GROOVE button and especially, specific intro and ending buttons. I can't imagine how it's going to be easy and effortless to first choose which specific intro and ending you want with buttons by the display before you press INTRO or ENDING. I can't perceive this as anything but a design flaw that those who wish to upgrade from the PSR 740 will just have to live with.
As I can do a million times more sequencing functions with my computer than with any keyboard, I won't be pressing many of the new sequencing buttons on the PSR 2000.
Despite my reservations, I am very excited about buying the PSR 2000 because I want the extra style capacity and the 13 extra voices and ease of choosing voices.
Larry