[Scribus] Em dash macro?

[Dan Fink]

I use em dashes frequently. And I often have to insert them in the
Scribus text editor when the author used double hyphens -- instead of
the special character.

I can't find much documentation on how to write Scribus macros; is there
something simple that can make my 'f9' key or some such into a Insert
Special >> em dash?

Thanks in advance!
DAN