Is there a (easy) way to add a link to the current parent page that will continue to work after pages are rearranged in the hierarchy? I'm not sure we will be able to install a plugin. If we do install a plugin, it has to be rock solid.
Example: (Read ~ as whitespace)
A (parent of 
|
+-- B (parent of CD)
~~~|
~~~+-- C (Child of
~~~+-- D (Child of
B has a link that navigates to A
CD have links that navigate to B
Then change happens, and the tree is re-organized to look like this:
A (parent of D)
|
+-- D (parent of BC)
~~~|
~~~+-- B (Child of D)
~~~+-- C (Child of D)
Now, without having to edit the pages...
BC's link navigate to D
D's link navigates to A
