Sorry, was on holiday during the last couple weeks.
Endnote will not let you use two different Author (uppercase vs lower case) options for the two different situations you quote. I recommend you hide the author (right click in the formated citation) and type it in prior to the endnote citation, and retain the more commonly used (AUTHOR, year) option for the regular citations.
Citation: (AUTHOR, |Year|, p. Cited Pages|)
Using post-processed temporary citation (with Romice added manually).
Romice {, 2020 #007}, the result will be: Romice (2020)
Remember if it is a multi authored paper you need to also add the et al. manually in this case
In my science writing I really avoid using the author name in the sentence, and just cite the full citation in parentheses.