First find the cited paper, and then click "Citation"-"Insert Endnote" in the toolbar. At this point, you can see the reference mark at the back of the paragraph and the comment mark at the bottom of the page. Click Footnotes and Endnotes at the bottom of footnotes in the Reference bar. You can select a numbering style in the format, and then click Insert.
When a paper quotes literature, it is necessary to indicate the source of the quoted content. The following are some commonly used methods to mark cited documents: Direct quotation: If you quote others' original words directly, you need to add the author's name, year and page number to the quotation, and enclose the quoted content in quotation marks.