It would be interesting to have something I could drop into the block diagram that would work like a navigation point. Maybe something I can route a wire through that wouldn't change anything about the data. You would could drop it in and give it a tag, then later pull up a nav points window that would list all of the nav points along with their tags and an optional description, and a way to double click one to jump to it. This would make it much easier to document code and navigate through large projects, especially projects with multiple developers.
