You can get help on a topic by typing:

     HELP topic subtopic subsubtopic...

 A topic can have one of the following forms:

     1. An alphanumeric string (e.g. a command name, option, etc.)
     2. The match-all or wildcard symbol (*)

 Examples: HELP SUBSTITUTE NEXT
           HELP CHANGE SUBCOMMAND
           HELP CH

 If a topic is abbreviated, HELP displays the text for all topics that
 match the abbreviation.