Let me share a piece of code to quickly add title and author info:
(kbd-map
 (:mode in-text?)
("M E" (insert '(document
		 (doc-data
		  (doc-title "")
		  (doc-author (author-data
                               ;; Your name here
			       (author-name "Your name here")  
                             ;; Your institute here
			       (author-affiliation (document "Your institute here"))  
                             ;; your@email.here
			       (author-email "your@email.here"))))))))  
Move the cursor to the head of your article, type ME, you will be seeing the author info added automatically.
There is a make-doc-data-element function, but I do not how to use it.
