Uninstalled this hack and installed
top navbar instead, because :
(1) This hack has a bug where when you try to update a link, nothing happens.
(2) Attempting to go back and re-set the permissions on links manually after adding a new usergroup is a tedious process.
(3) This hack lacks a default "let everyone see this link" option.
(4) This hack cannot add a second nav bar, so if you add a bunch of links, it causes the links to stretch off the page, which renders badly for visitors.