Under the Printed Documents Templates we would like the ability to modify the subject lines of the emails that are sent.

For example, our AR statements that we send out monthly - the current subject line is "Receivable statement."

This is kinda "meh" and doesn't stand out in our customers' inboxes and sometimes the emails go ignored. We would like to be able to modify the subject line at least to contain our business name and using more customer centric verbiage.