Thanks so much Harold. I take your reply to mean, as well, that both users' edits are saved complete and intact, correct? It's confusing to me because both User A & B at first would be editing, simultaneously, what might be called Version 1 of a document. When A closes his or her document, that creates Version 2 (the new main document). Then when B closes his or her document, that creates Version 3 (a subsequent new main document). So let's say A deletes a paragraph before saving (creating Version 2 without the paragraph) and B edits that paragraph, the one A has deleted (creating Version 3 which has edits to a paragraph that was deleted in Version 2). When B saves (Version 3), what becomes of the deleted paragraph and its subsequently edited content (because it seems to me that it can't be both deleted in Version 2 and edited in Version 3)? In other words, if B's edits "undo" something A has already edited, but A saves the document first, what happens? Whew! I hope that's clear.