I’ve just taught myself Markdown, and would like to use Atom as my email editor for MailMate. Atom is included amongst the Mailmate “Bundles,” which includes applications that integrate. I’ve installed the Atom bundle; when Composer in MailMate is visible, I go to the Command bar in the client, and the Atom Editor command appears. This opens Atom, and the text I’ve composed in MailMate appears for editing.
How do I then send edited text back to MailMate? Is it a simple matter of copy/paste, or is there some integration?