The following conventions are used in HELP:

    <mmm>            Angle brackets in railroad diagrams indicate
                     where you, the user, need to supply information.
    <nnn>            Angle brackets in text are icons used to
                     identify information that is specific to an
                     operating system or platform. For example,
                     <OpenVMS>. Double, empty angle brackets ( <>
                     ) indicate the end of this specific information.
    vnn              nn is the version number. For example, v70.
    {text1 | text2}  You must choose one of the two choices.
    [text1 | text2]  You have the option of choosing one of the two
                     choices.