Joe Ponzio

The New Nine Menus Manager adds a section to the ‘Appearance -> Menus’ section of your dashboard so you can quickly and easily create and delete menu locations on the fly.
Why? Because we’re tired of jumping back and forth between our functions file and the dashboard. Because we’re tired of writing <code>register_nav_menu</code> over and over again every time we start a new site.
And because there seems to be a disconnect here – just about every site needs to have a navigation menu, there are no configuration options for <code>register_nav_menu</code>, and it just seems to make sense to be able to create and delete menu locations in the dashboard.
This plugin was built by <a href="http://www.newnine.com/" title="New Nine Media & Advertising" rel="nofollow ugc">New Nine Media & Advertising</a>.
Single Site & Network Compatible
The New Nine Menus Manager works on both individual sites and WordPress Networks.
MU Compatible
The plugin is also Must Use compatible for both single sites and network installations.

New Nine Menus Manager

Register new menu locations right from the menu screen. Never write register_nav_menu again and keep your functions file clean!

Micah Wood

The mPress Menu Wormhole plugin allows you to easily add a menu as a submenu to another menu.
<h4>Why?</h4>
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.
<h4>How?</h4>
Using this plugin is simple:
<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>
IMPORTANT NOTE: 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.
<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.

New Nine Menus Manager vs mPress Menu Wormhole