B"H I always looked at the LEFT and RIGHT buttons as navigation keys. If the object is a folder, the RIGHT buttons enters the folder. If it is an option the RIGHT button applies it. The LEFT button would back out of the folder without applying the selection. I don't think I ever used the ON or OFF key to select or cancel.
That being said, the idea of an indication as to which option is currently selected might be nice when toggling through all the options. Menachem
