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The records are keyed on a user/group id. You'll notice that there is already a user/group id zero in the file. This id corresponds to the users you setup for initial programs (file PUI0001203).
The "zero" record is the global one that takes effect if there is no record for the specific user that signs in, or if running an anonymous session. This "zero" record must always be present and must not be removed, although you can change it to effect global setup without having to add records to the file for a many different users.
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