When you followed a DocBook link (DocBook -> "Go to opposite link end") you can't go back where you came from (except if only one link points to the target node, and the target node is selected). Something like Backspace or Alt+Left in Web browsers should be introduced.
BTW, a link related bug: The "Go to opposite link end" will be disabled if the implicitly selected element node is the descendant of the link element. Like when the caret is inside the "bar" text here: <link linkend="foo">foo <markup>bar</markup></link>. -- Best regards, Daniel Dekany
