1. Me too!
2. Me too, but I use a custom foot pedal set that does the same.
3. They're saved in PDF format.
4. No, but I believe you can get a moving cursor to follow along. I don't use that function, so do not know much about it.
5. There is an Android version of it, I, like Larry, use the iPad/Apple versions.
See
THIS thread for how to set it up with an 8X/BK-7m setup.