VMS Help CREATE, /NAME_TABLE, Qualifiers, /ATTRIBUTES  *Conan The Librarian (sorry for the slow response - running on an old VAX)

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

    Specifies attributes for the logical name table. If you specify
    only one keyword, you can omit the parentheses. If you do not
    specify the /ATTRIBUTES qualifier, no attributes are set.

    You can specify the following keywords for attributes:

    CONFINE    Does not copy the table name or the logical names
               contained in the table into a spawned subprocess; used
               only when creating a private logical name table. If a
               table is created with the CONFINE attribute, all names
               subsequently entered into the table are also confined.
    NO_ALIAS   No identical names (either logical names or names of
               logical name tables) may be created in an outer (less
               privileged) mode in the current directory. If you do
               not specify the NO_ALIAS attribute, then the table may
               be "aliased" by an identical name created in an outer
               access mode. Deletes any previously created identical
               table names in an outer access mode in the same logical
               name table directory.
    SUPERSEDE  Creates a new table that supersedes any previous
               (existing) table that contains the name, access mode,
               and directory table that you specify. The new table
               is created regardless of whether the previous table
               exists. (If you do not specify the SUPERSEDE attribute,
               the new table is not created if the previous table
               exists.)

               If you specify or accept the default for the qualifier
               /LOG, you receive a message indicating the result.