Multiple authors of same last name in bibliography

I think it would be nice if Zotero would break away from BibTeX's ancient practice of listing all authors of the same last name as the same author in a bibliography. That is, if I have a book by Suzy Smith and one by John Smith, when I create a bibliography (maybe this is specific to the Chicago style) does this:
Smith, Suzy. 1995. blablabla.
---. 2004. A Book.
BibTeX allows you to add an inivisible field that makes names sort differently, but I don't see anything like this on Zotero, so I'm not sure if there's a way around it.

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