I don't know if you have to change a setting somewhere or not, but in my Word
it has always automatically changed two sequential dashes to an EN-dash as
soon as you press space after the next following word.
e.g. "-- an " will "automagically" become "– an "
Note that this does not work if you put the dashes at the beginning of a
line, where they will be converted into a bullet when you press Enter at the
end of the paragraph ... and open a bullet for the next paragraph.
The same sort of thing does NOT happen with three dashes, BUT you can make
three dashes convert by adding that into the Auto Correct Options ...
· Click on Tools, then on Auto Correct Options [or Alt T A].
· Click in the Replace box then type "---"
· Click in the With box then hold down the Alt key and press 0151 on the
numeric keypad to get an EM-dash —
Once you start to enter in the With box, the Add button below should become
highlighted ... press it to add the conversion to the table below.
Brian