I'm wondering if other people are encountering this problem. Last week, we shifted to using the new Email 2.0, and I've noticed that I'm not always able to edit the text version of a draft email (on latest Firefox/ on macbook, if that helps). I usually just close and reopen the email draft, then it highlights as clickable. Then I can continue. But... annoying!
Maybe I'm missing something. Maybe others have encountered this?