/sys$common/syshlp/helplib.hlb SET, SECURITY, Qualifiers, /COPY_ATTRIBUTE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /COPY_ATTRIBUTE=(keyword[,...])

    Specifies a subset of security elements to transfer from a source
    object to a target object. Valid keywords include the following:

    Keyword        Description

    ALL            Copy all security elements
    (default)
    ACL            Copy the access control list
    OWNER          Copy the owner
    PROTECTION     Copy the protection code

    Use the /COPY_ATTRIBUTE qualifier with the /LIKE qualifier. For
    example, you can create an ACL for an object and then copy its
    ACL to new objects.