Marcus Downing

<p>When writing or modifying a theme, the function wp_nav_menu() displays the contents of menus configured in your settings. If you have a lot of little menus the list can get hard to manage, so this plugin lets you group several menus under a single menu.</p>
<p>To use it, simply add a <code>submenu</code> parameter to the arguments of wp_nav_menu, like so:</p>
<pre><code>wp_nav_menu(array(
  'menu' => 'header',
  'submenu' => 'About Us'
));
</code></pre>


Subtitle Filter

Adds tha ability to show only a submenu with wp_nav_menu().

Micah Wood

<p>The <strong>mPress Menu Wormhole</strong> plugin allows you to easily add a menu as a submenu to another menu.</p>
<h4>Why?</h4>
<p>Let’s say you have a sidebar menu where you list a special collection of important pages on your site.  Now let’s say you want those same items to appear in a submenu off of your main header navigation.  Now you have to manage the same collection of pages in two places.  The mPress Menu Wormhole plugin makes it easy to maintain a single menu and have the changes you make to the sidebar menu automatically take place in the header menu as well.</p>
<h4>How?</h4>
<p>Using this plugin is simple:</p>
<ol>
<li>Install the plugin.</li>
<li>Activate the plugin.</li>
<li>Go to ‘Appearance’ -> ‘Menus’ in the WordPress admin menu.</li>
<li>You should see a box in the left column called ‘Navigation Menus’.  If you don’t see it, check the FAQ page for what you need to do.</li>
<li>Check box next to the menu you want to add and click the ‘Add to Menu’ button.</li>
<li>Move the new item where you want and click the ‘Save Menu’ button.</li>
</ol>
<p><strong>IMPORTANT NOTE:</strong> Please don’t direct a wormhole into itself… it creates a black hole.  In other words, don’t add a navigation menu to itself.  It creates an infinite loop that will crash the front end of your site.  No worries though, it is easily undone.  I do it just for fun sometimes.</p>
<h4>Features</h4>
<ul>
<li>Clean, well written code that won’t bog down your site.</li>
</ul>


mPress Menu Wormhole

Easily add a menu as a submenu to another menu.

Subtitle Filter vs mPress Menu Wormhole