[MlMt] Editing draft messages

[Martin S Taylor]

Suppose a colleague has access to a (joint) account, and writes an email 
on that account (not using MailMate). She doesn't send it, but saves it 
as a draft pending my approval.

It shows up in the Drafts folder on my machine. (Under 'Pending 
Submission' it says 'not available'.)

I'd now like to edit it to make some amendments. How can I do this?

Martin