From the name I'd guess that the ODF scan pluigin actually does both RTF and ODF.
Yesterday night, I thought about this question again. And I think the Record number in Endnote is better than the item in the Zotero. As the Record number is very simple, the users can easily read it, input them in plain text, and form a preliminary impression, such as a certain reference at a position of more than 700 and less than 800. However, the item in Zotero is long and has many letters, which is difficult for users to remember, input in the Latex file by keyboard, and form a preliminary impression of those characters.