Add an audience when using a particular template

We have a request that whenever a message is sent using a particular template that a set of defined addresses will be automatically added to the recipients.

The use case for this is when an e-mail goes out from our technology support group to end users, the members of the technology support staff should also receive that message so they are aware of its contents and can respond to incoming questions.

It is possible to specify one audience for a delivery template but it does not appear to be possible to set multiple audiences, with one of them always included.

I contacted Client Care and was told that there is no delivered feature to support this.

I am therefore submitting this feature idea.  Provide a method for enabling messages from a delivery template to always be sent to members of a second audience in addition to the audience chosen for the delivery.