Add mailbox alias to all existing accounts

Running CGPro 6.1.11.  Is it possible, and how, to easily add a mailbox 
(calendar) alias to a shared calendar to every account in a domain?  I 
see that one can do this in the template for new accounts but I need to 
add the alias for accounts already on the system.  Possible?

Cheers,
Robert Opalko


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