🚀 go-pugleaf

< Assuming I set up a separate style for short
citations, would I merely switch to this each time I came to that prompt?>

Yes, if you have a separate style  for short citations you have to select
_that_ style to get a short citation, not your regular long citation style.

<Also, how would this work if you were trying to paste a footnote with
multiple references, and one of those references was a full citation while
the others were the shortened versions?>

You would have to go back to Endnote for each citation and paste them in
succession.  If one (or more) was a "long" citation, you would have to be
sure that "long" style is selected before you click on the reference.

There are two basic principles to remember here: (1) If you select a style
you have set up the way you want it, Endnote will produce information from
your bibliography in the way you have set it up;  Endnote has no idea, nor
does it care, whether this is for a bibliography, a first reference, a second
reference, or anything else.  (2) When you have selected your style, selected
your reference, and clicked to copy it, you can then paste it wherever you
place your cursor;  this can be in your text, as the only item in a footnote,
or as one of a series of items in a footnote.  Since the copied item goes to
the Clipboard, and the Clipboard can hold only one item at a time, you have
to go back and forth to paste in several records.

Sorry if that sounds too basic, but it's intended to clarify.