== Description ==
updates the TNG custom menu with a additional flag -- users-- which restricts a menu item to logged in users , not showing it to casual visitors to the site.
is used as part of the menu item definitions in the site's customconfig.php file. See [[Custom_Menu_Hook]] for complete details on how to define menu items.
to flag a menu item for logged-in users only is as follows:
<pre>$LINKTYPE['link_nr]['user'] = true;</pre>