/sys$common/syshlp/helplib.hlb CMS, REMOVE, ELEMENT, Command Parameters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 element-expression

    Specifies one or more elements to be removed from one or more
    groups. An element expression can be an element name, a group
    name, a wildcard expression, or a list of these separated
    by commas. When you use wildcard characters in the element
    expression, /IF_PRESENT is the default. (CMS does not return an
    error message if the group does not contain the element being
    removed.)

 group-expression

    Specifies the group from which one or more elements are to be
    removed. A group expression can be a group name, a wildcard
    expression, or a list of these separated by commas.

 remark

    Specifies a character string to be logged in the history file
    with this command, usually used to explain why the command was
    entered. The remark is enclosed in quotation marks. If no remark
    was entered, a null remark ("") is logged.