We use  the extended desktop at church. I do some of the powerpoint. I am
doing it at home, then copying when I get there to the hard drive.

Someone else will be running it this week. There are sections that have a a
picture for the background, that are in between the words of a song, because
someone is singing solo that part.
What I have done is put it on a notation below the main frame. When we start
the show, and it goes to the extended desktop, on the computer screen, will
those notes appear below the main frame on the right, so she can follow
along then advance to the next slide? Say, the picture on the computer
screen, and projector, but on the computer the notes will be below the
picture.
Hope that makes sense in explaining it.
Thanks Bruce