Some Menu sections have additional on-screen instructions. Those items that have the Menu Help have the Menu number highlighted.

To view the Menu Help: 

At the Menu with a highlighted number, enter a <?> plus the number of the menu item that is highlighted (example:  <?1>) and press <ENTER>. Then type the letter H and press <ENTER>. When viewing the help you have the option to Exit (pressing the X key), Print (pressing the P key) or Downloading the help instructions to a file (pressing the D key). Use the arrow and page keys to scroll the help if there is more than one page.