Hello,
On my PW4 (FW 5.12.1), when you go to another point, let's say a footnote, and you use the "Go to the previous place" menu item, you can't then go back to the footnote in the same way (the item is set unavailable). I think the expected behavior here is that the place you are back from becomes the new "previous place" once you are back. There are documents (typically when the footnotes are not links and you have to use bookmarks) where it would be very useful to be able to go forth and back like this. 2¢
