Thanks Joe. Here is where I am on this.
If you do a right click, copy to, navigate to draft it makes a copy. It's a bit cumbersome.

Someone said that a command C, command V does the trick, but I cannot get that to work. any ideas?

Also, The copies stack on top of each other. So I cannot see or adjust them individually, I need to send out the one on top first. The the next, Super weird.

Finally, Apple Mail has a bugg, (confirmed by Michael at Spam Sieve a few weeks after I got on board Mail from Outlook) — it holds email in draft that were actually sent, cluttering the draft folder up with email which were successfully sent! (this does not have anything to do with my thread, but I had to mention it as it's frustrating - have you noticed that?)