Right now, specifying the type of an entry ("entrytype") as a keyword for the automatic generation of groups is ineffective (I also tried "type", "jabref-entrytype" and "bibtextype" as values of "Field to group by"). I tested this using the latest release as well as the current development version on both Win 7 and Win 10 (all English). For other functionalities of Jabref, e.g. the definition of displayed entry table columns, "entrytype" is a valid keyword. My colleagues and I would much appreciate if "entrytype" was also a working keyword in the case of automatically created groups. Many thanks in advance!