There are different sorts of 'help' available thru entering question marks
which are always available to the user.
??? - Three question marks will show brief descriptions for each
option in the menu.
???? - Four question marks shows extended help for this menu.
?OPTION - An option name preceeded with a '?' shows extended help for
at a 'Select ... Option' prompt:
? - A single question mark lists all options which can be accessed
from the current one. It has the same effect as [AUTO-MENU].
?? - Two question marks lists all options, showing their formal
names and [LOCKS].
Also listed will be the common menu containing options