We regularly have a reason to add a CC email to a specific reply on a ticket, without wanting to permanently add that email address as a CC for future emails.
A customer/user has an issue related to disk space, and requests that some be added. Our workflow would include a step that involves emailing the customer, with a cc to our accounts department. Apart from that email, accounts does not want to receive any other ticket updates.
In our previous ticket system, we could just enter a CC (or BCC) in addition to the To field, however this doesn't appear to be possible with Deskpro.
We could temporarily add ticket CCs, however this is messy and prone to error.