@ErikMH: I think I’ve pretty much implemented all of this in the latest beta. Let me know how it all works for you!
BTW, I did not rename the Nav menu to Go, as you had suggested. BBEdit seems to mostly use the Go menu for navigating within a document, whereas the Notenik Nav menu is for navigating within a Collection of documents. I thought the two concepts different enough that I didn’t want to confuse them.