[rt-users] insert field values in correspondence/comments?

[Josh Tackitt]

I'd like to bulk update tickets and include the value of a field or 
custom field in each one.  For example:

Bulk updating X tickets.  Each ticket has a Custom Field called 
"Activation Code".  I write a single reply that goes to each selected 
ticket and wherever I include 'CF.{Activation Code}' it inserts the 
value of that field from each ticket.  Basically a mail merge.

Is this possible?

thanks,
Josh