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().

JohnnyPea

<p>This plugin adds enhanced “Navigation Menu” widget. It offers many options which could be set to customize the output of the custom menu through the widget.</p>
<p>Features include:</p>
<ul>
<li>Custom hierarchy – “Only related sub-items” or “Only strictly related sub-items”.</li>
<li>Starting depth and maximum level to display + flat display.</li>
<li>Display all menu items starting with the selected one.</li>
<li>Display only direct path to current element or only children of selected item (option to include the parent item).</li>
<li>Display menu as drop down.</li>
<li>Custom class for a widget block.</li>
<li>And almost all the parameters for the <a href="https://codex.wordpress.org/Function_Reference/wp_nav_menu" rel="nofollow ugc">wp_nav_menu</a> function.</li>
<li>shortcode <code>[advMenu]</code></li>
<li>Display menu items descriptions.</li>
</ul>
<p><strong>Are you missing something or isn’t it working as expected ? I am open to suggestions to improve the plugin !</strong></p>
<p>Thanks the <a href="http://wp.sk/" rel="nofollow ugc">Slovak WordPress community</a> and <a href="http://www.webikon.sk/" rel="nofollow ugc">Webikon</a> for the support. For more information about me check out my <a href="http://bocinec.sk/" rel="nofollow ugc">personal page</a>.</p>
<h3>Options</h3>
<ul>
<li>“Title” – set the title for your widget</li>
<li>“Custom Widget Class” – custom class for widget block</li>
<li>“Select Menu” – menu from the custom menus you want show</li>
<li>“Show hierarchy” – you can set to display only related or strictly related items</li>
<li>“Starting depth” – display only menu items which depth is greater then this</li>
<li>“How many levels to display” – limit the display from 1 to 5 levels or flat display</li>
<li>“Filter selection from” – only items which are children or grandchildren of selected element will be displayed</li>
<li>“Select the filter” – filter the direct path for the current menu item (like breadcrumb navigation) or display only its children</li>
<li>“Include parents” – when checked it display also parent item upon filters (e.x. Display only children of selected item)</li>
</ul>
<h3>Shortcode</h3>
<p>You can use <code>[advMenu]</code> shortcode with the parameters listed below:</p>
<pre><code>'nav_menu' (menu ID)                
'title'             
'dropdown'              
'only_related'          
'depth'                 
'container'             
'container_id'          
'menu_class'            
'before'                
'after'                 
'link_before'           
'link_after'            
'filter'                    
'filter_selection'          
'include_parent'                
'start_depth'           
'hide_title'            
'custom_widget_class'
</code></pre>
<p>e.g. <code>[advMenu title="Menu Title" nav_menu=2]</code></p>


Subtitle Filter vs Advanced Menu Widget