Yes, and that is probably fine for most songs....
My real point is going from Korg to Yamaha don't you have to re-do the songs/registrations anyways? So making a playlist entry for each song....no big deal.

I don't think there is a easy way to convert what you have on the Korg anyways....even if the playlist worked exactly like the songbook.....you still have to setup a song, style and maybe tweek the sounds for the OTS if needed...right?