Two areas for improvement: 1. Make it possible to 'copy' and change an email invitation into an email to non-responders. It's a waste of time having to copy-paste everything from one email to the other. 2. Allow the email to non-responders to be scheduled before the invitation has been sent; let the criteria be that the email invitation has at least been scheduled. Ideally we could set up both messages, and not have to return to the Campaign to initiate the email to non-responders after the initial invitation has been sent.