Welcome, my name is ***** ***** I will assist you today!
depending on whether you have an Ipad 2
or newer, what you should be able to do, and what may serve you best. Is going into your screen saver settings, select one specific album.
In that album place only one movie.
The movie itself, you want to make with either powerpoint
( for mac )
Once you have created the slideshow, including audio and any video you want. Export it as a quicktime movie.
Then, connect the ipad to the computer, sync the movie to the ipad via itunes.
And then, make sure the movie goes into the specific folder that the screensaver is set to.
If all that is done properly, Your scrolling slideshow of specials, discounts, etc. Will work as a screensaver. Coming on when the ipad is idle, and going away when a client / customer taps the screen to login.
The main concern I have is that you said the existing screensaver doesnt scroll. That makes me think you may have one of the older ipads ( and ios version )
Senior Technician and Network Switching Systems Operator / Maintainer.