Hey, I found a workaround for what I want to do. It’s a bore, and I agree with all the others who think this is totally customer unfriendly and the explanation given by an Apple employee is absurd. Steve Jobs must be spinning in his grave.
I compile long sections of text in draft in email, and I use “select all” to highlight the draft I’ve made and then paste this version into a new email which I send to myself as a back up.
I noticed that on an email as it arrives in an inbox, when it cannot be edited, “select all” still appears as an option. So my solution is to send the draft I’ve made as an email, wait for it to arrive, then select all, then paste the draft into my editing email, and start my new draft, it’s inconvenient, but at least it works.
Whoever made what seems to be the star reply to this link needs to be fired, and needs to make an apology to us all before he gets a new job shovelling sh*t.