Hi Sharon

the menu is part of BibTeX-mode (https://www.emacswiki.org/emacs/BibTeX)

hth

Simon

On 2020-02-26 17:14, Sharon Kimble wrote:
> I'm hoping that someone can help, but when I'm in a buffer of my
> bibliography, there is a drop-down list in the menu-bar, of buffer
> commands titled 'Entry-Types'. But what program puts it there?
>
> I want to create a new command to an entry in it, but I don't know what
> the originating program is. Can anyone help please?
>
> Thanks
> Sharon.