element-expression

    Specifies one or more elements to be modified. An element
    expression can be an element name, 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. Note that this parameter
    and the string on the /REMARK qualifier are unrelated.