VMS Help CMS, CREATE, CLASS, Command Parameters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 class-name

    Specifies a name for the class. CMS reports an error if you
    specify a name that is already used for an existing class or
    group. (Class and group names must be unique.) If a previously
    used class or group name has been removed with the DELETE CLASS or
    DELETE GROUP command, you can reuse that name with CREATE CLASS. A
    class name can also be a list of class names separated by commas.
    Wildcards are not allowed.

 remark

    Specifies a character string for the creation remark of the class
    to be logged in the history file with this command. The remark
    is enclosed in quotation marks. If no remark was entered, a null
    remark ("") is logged.