Thank you Fred.
It would work but there is one little problem, I use Registrations if the assigned button is not in the Registration it doesn't work
I have several Registrations for each song I play. I made these Registrations in many years, I didn't think to assign a button now all the Registrations bring the A button to "Eye the tiger"
There must be an easy way without changing all the Registrations.
I don't use song book.
On the good side I have an external display attached to the keyboard it works, somehow I set it up to display only lyrics of a song. The only problem the display is very large, I would need something small and put it on the keyboard's music stand.