I'm trying to do something that I'm sure it's possible to do with BibLaTeX and Biber, but I'm struggling to figure it out. So, I have two .bib files, mystuff.bib and otherstuff.bib. Throughout the document, otherstuff.bib entries are cited, and they should be output in the \printbibliography at the end of the document. But: during the document, I need a section which contains everything listed in mystuff.bib (accessed by \nocite{*}) sorted using ydnt rather than the normal nyt. I can get a section with all of mystuff.bib by using the following:
\begin{refsection}[mystuff.bib]
\nocite{*}
\printbibliography
\end{refsection}
But, I don't have individual control over how it is sorted. I've tried using \addsectionbib but I'm not sure I understand how to use it to achieve what I want.
So. I want two bibliographies, using different bibresources, and different sorting options, within one document. How?
\newrefcontext[sorting=ydnt]before the\printbibliography. (Untested because a full MWE is missing.) – moewe Sep 29 '19 at 14:12