When I go to Configuration (the gear) -> Email -> Compose, Default Send Address doesn't include any external email addresses.

Is there a way to tell ASE to show a user's external email addresses in the popdown? Alternatively, is this a feature that's enabled in the purchased version?

Back story: we're looking at possible purchase of ASE or Hosted. I'm testing the ASE demo (the VMWare instance you can download from open-exchange.com) as part of evaluation.