A common approach to hiding content from the primary navigation is create a branch that is separate to the Home branch. This is now standard in the sample projects that ship with the installer, and is linked to from the Navigation menu in the webtop.
We call it the Utility Navigation and typically store global utility navigation menus and footers in here. Specifically FarCry webtop is looking for the
hidden navigation alias, which in this example is attached to the Utility navigation item.
(Continuing the discussion from Second HTML page under nav item)