DesignStack

Custom Post Type Toggle gives you a clear overview of every registered post type on your site — whether they come from WordPress core, your theme, or installed plugins. Post types are grouped under tabs by their source, so it’s easy to see what comes from where.
If you don’t need some post types (e.g. “Portfolio” from a theme you’re not using, or “Testimonials” from a plugin), switch them off. Disabling hides the post type in admin and prevents it being used on the front end.
Why use it 
– Keep the admin menu uncluttered 
– Reduce confusion for editors and clients 
– Lighten the site by disabling unused post types
Features 
– Toggle any post type (core or custom) on/off 
– Tabs that group post types by source (Core, theme, plugin) 
– Clean card-based interface with instant AJAX switching 
– Counters for enabled, disabled and total 
– Safe to use — re-enable at any time
How it works 
The plugin inspects where <code>register_post_type()</code> is called from and labels the source as Core, active theme/child theme, or a specific plugin name.

CPT Toggle – Disable Custom Post Types

Enable or disable any post type. Tabs group post types by source (Core, theme, plugin) for a tidy WordPress admin.

sevenspark

Bellows is an awesome accordion menu for WordPress. It works with the WordPress menu system to allow you to build beautiful accordion menus for your site.
<a href="https://wpaccordionmenu.com/free/" rel="nofollow ugc">Bellows Lite Demo</a> 
<a href="https://wpaccordionmenu.com/" rel="nofollow ugc">Bellows Full Demo</a>
Get started: <a href="http://sevenspark.com/docs/bellows/quick-start/lite" rel="nofollow ugc">Bellows Quick Start Guide</a>
<h4>Feature Overview</h4>
<ul>
<li>Fully functional accordion menu</li>
<li>Multiple submenu levels</li>
<li>3 included skin presets</li>
<li>Multi- or single-folding</li>
<li>Expand current submenu automatically option</li>
<li>Shortcode integration – add an accodion menu to yoru site anywhere you can add shortcodes</li>
<li>Widget integration – add an accordion menu to your widgetized theme areas</li>
</ul>

Bellows Accordion Menu

A flexible and robust accordion menu plugin

CPT Toggle – Disable Custom Post Types vs Bellows Accordion Menu