In earlier releases of Endevor there was a option in the iprfs.iqual.CSIQSRC(ENCOPTBL):
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* SUBMIT JCL TO THE INTERNAL READER USING THE USERID WHEN PROCESSING
* THE API PACKAGE SHIP FUNCTION.
*---------------------------------------------------------------------*
* ENHOPT PACKAGE_SHIP_WITH_ALTID=ON DEFAULT VALUE IS OFF
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* USE THE ALTERNATE ID, INSTEAD OF THE USERID, WHEN SUBMITTING A
* PACKAGE SHIP REQUEST.
*---------------------------------------------------------------------*
* ENHOPT PACKAGE_SHIP_WITH_ALTID=ON DEFAULT VALUE IS OFF
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