Sometimes I use the foot switch for that. It is also assigned to one of the buttons, just a couple inches from my left hand. One of the reasons I prefer the 61 key model.
Not sure why I even changed the pages, because I've know the words to that song for many years.
Thanx Don..I also assigned button #3 for lyrics page down for the few times I ever use them on an obscure tune I haven't done in a while when I don't use my laptop, etc,.. ..kool feature on KORG