Emails sent to sender

Hi,
we are using rt 2.0.15 and in the process of getting rt 3.0.x and I
noticed that in rt 3.0.4 you can tell it to send emails to the sender. Can
this be set up on a per queue basis? we have some groups that want it and
some that dont. and is there an easy way to add this to rt 2.0.15 for the
time being?

John