Navigation Buttons
Moves menu cursor down. Short hold jumps down one position,
long hold jumps to end of list (Exit).
Moves menu cursor up. Short hold jumps up one position, long hold
jumps to top of list.
Selects menu item at cursor position.
Cursor Function display
Menu point has no sub menu.
Menu point contains a sub menu or an item that may be modified.
Navigation Buttons and Functionality