If you are an authorized user you can use REXX/CICS authorized
commands, regardless of whether you are running in an exec that was
loaded from an authorized REXX/CICS library.
If an error is detected in the list of user IDs, the user ID with
the error is placed in the REXX special variable, RESULT and processing
of the list stops.
AUTHUSER commands are cumulative, that is, previous AUTHUSER command
definitions remain in effect until the CICS region is recycled.