1. Drag and drop will always give you a bibliographic reference, not the citation. You can use the keyboard shortcut to copy the citation to your clipboard. See keyboard shortcuts.

2. If you're using the Word plugin the insert citation button should give you the citation format for the style. If you don't like what the Turabian footnotes look like try using the Chicago note with bibliography style. It may well be what you're looking for.

Before the OP actually follows any particular suggestion, it'd help for the clarify what they actually want, since it's not clear.

it shouldn't be grayed out for all - just for "Author-Date" citations (i.e. where the work is cited as (Marx 1848) in the text.)

Try using Chicago Manual of Style (Full Note with Bibliography)
if that has grayed out FN and EN option let us know.

if I understand you correctly that should be very easy and not involve much learning.

see here for general instructions:
http://forums.zotero.org/discussion/5104/modifying-word-plugin-using-journal-abbreviation-instead-of-publication-name/#Item_2

What you want to do is to change the line, one of the first in the csl that reads something like
<style xmlns="http://purl.org/net/xbiblio/csl" class="in-text" xml:lang="en">

to
<style xmlns="http://purl.org/net/xbiblio/csl" class="note" xml:lang="en">

i.e. only change the value of 'class'.

Please make sure to read and follow the instructions in the first link, though.

I hope I'm not supposed to understand this ;-).
If you want help, try to be both clearer and more specific. Otherwise enjoy toying with csl, which can actually be quite entertaining.

If what you want is a citation style that does both in-text _and_ footnotes, depending on the nature of the citation, that's not something csl does (nor is it something I have every seen anywhere).

ah sure, yes -
I overlooked that, sorry.
Look towards the end of your citation style
there is a section that starts with
<citation>

and one that starts with

<bibliography>
basically, you want to take the
information in the that latter section and put it into the former -

you can't obviously cut and paste the entire section - much of the 'option' stuff is unique to bibliography or citation (e.g. entry spacing doesn't make much sense for citation), so basically start where it says:
<text macro="author" suffix=" "/>

and then do c&p - you may still have to play around a little, but that should basically do it.
I'd suggest using the Chicago Style as a reference for comparison, it's the best footnote style in Zotero (and the most common one generally speaking)

OK, finally I get it - no, I don't think that's possible.
Why would you want that?
Footnotes are always numbered consecutively, for good reason (that's also a word/Ooo setting that I wouldn't know how to change).

If this is just for keeping track of cited literature while writing, while not write in one style (e.g. Chicago) and then switch to another style when you are done?

If this is actually required by anyone reasonably important (i.e. journal or department), please post a link to the requirement.

Edit: Okay, just saw it now. They have communications and articles differently.
That's very strange indeed. As I say below - I think if it's done in a major Journal Zotero should be able to do it - but I'm not so clear about a possible way of implementing this.

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(old post read): hmm - now I'm confused again. I just looked at JACS and it doesn't have footnotes
just a regular numbered bibliography - titled "References" at the end,
e.g. here:
DOI: 10.1021/ja9009088
that's exactly what the csl style of the same name does.

I would be inclined to say if a major journal does something than Zotero should do its best to support it - but here I just don't see the journal citing in the way you say it does.

What is the status on this subject?
1) I see the American Chemical Society (ACS) style still does not support footnotes, as required by, e.g., Organic Letters (see http://pubs.acs.org/toc/orlef7/13/1 for examples).
2) If you look at articles published by ACS, you will notice that some footnotes contain multiple references (denoted a, b, c... etc.). If there is a way to do this with Zotero, I haven't found it...

Now I am confused. Some of the other styles (e.g. some of the Chicago manual styles) allow (1).

Thanks for the clarification.