Novell NETWARE 6-DOCUMENTATION Manual page 1263

Adding a group or user does not remove the current group or user; it simply
adds the rights to the group or user specified. If the user enters the wrong user
or group name, the user gets no feedback. If multiple users or groups are
assigned to the folder, it is possible that the user is unable to see the user or
group that was just assigned. It could be very difficult to know if the rights
assignment worked or not.
Rights set through this interface are inherited by the folder's subfolders. It is
impossible to manage all inherited rights from the Macintosh interface.
(Although not recommended, you could set the inherited rights filters from the
NetWare utilities to turn off inherited rights.)
Everyone
Assignment of rights to Everyone acts like the Macintosh user expects, with
the exception that Everyone's rights are inherited. In NetWare, the object that
represents the rights of any authenticated user is used to set Everyone's rights.
Everyone's rights can change from folder to folder, but once they are set, they
are inherited by subfolders.
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Novell Native File Access Protocols Installation and Administration Guide