In my entry editor appear additional panels like "Optional fields 2", "Deprecated fields" and "Other fields". I cannot modify the fields of them nor close or hide the panels. Most of the fields are empty or even the panel is empty. They do not appear when I create a new database. How can I get rid of them? "Set up general fields" in Options does not help!
... ok, I now found out that the additional panels are features of the BibLatex mode contrary to the Bibtex mode. But what is the use of it??? Still, how can I edit/close/hide the panels and in particular "Other fields", that is still there in Bibtex mode?