Dr Cool

Thank you very much Steve for pointing out those options I didn't find
naturally.

That makes me rewrite my recommandations ==>

#2 View/Show all headers ISN't intuitive, it should be renamed to something
like "Show Bci header" (as it is the only header added). Or, instead of "All
headers" it would more clear if it was "All destination fields". (In my
sense, it would be more user-friendly)

#3 Putting the access to the Edit the source of the HTML of a message in the
View/Edit source is kind of confusing (not being directly in the writing
structure box). There should have a button in writing toolbar allowing this
"View"

However, thanks to Steve for pointing these out ^_^