From the Notes Help:
Return Value = NotesDocument
A document that contains a link to each document in the newsletter’s collection; also contains the name of notesDatabase and the text of the original query that produced the collection, if any.
In my newsletter I can see the database, a summary of number of documents, the link and the text I have choosen to display for each document (SubjectItemName).
But what is “the text of the original query…” and how can that be changed/worked with?