mnmlthms

If you are looking for a plugin that help you to create unlimited sidebars for pages/posts/taxonomies… without coding skills, WP Custom Sidebars is what you’re looking for!.
Easily overriding sidebar positions on your site, no integration needed. Works with any WordPress theme.
Features:
<ul>
<li>Override any sidebars on your site.</li>
<li>Support Post types, Category, Tags or Custom Taxonomies.</li>
<li>Adding as many sidebars as you want.</li>
<li>Transferable/Importable sidebar data.</li>
<li>Translation ready with mo/po files.</li>
</ul>
Note that if you are using other custom sidebar plugins, you should disable them so WP Custom Sidebars won’t be confused on overriding sidebars 😀
How to use WP Custom Sidebars?
<ul>
<li>Step 1: Select post types you want to support custom sidebars in Appearance -> Sidebars -> General Settings tab.</li>
<li>Step 2: Create as many sidebars as you want. Then go to Appearance -> Widgets and add widgets to your sidebar you’ve just created.</li>
<li>Step 3: Go edit page/post or category/tag/custom taxonomies, then look for WP Custom Sidebars setting box, and overriding sidebars.</li>
</ul>
That’s it!
<h3>Arbitrary section</h3>

WP Custom Sidebars

Create unlimited sidebars for pages/posts easily without writing a single line of code!

OTWthemes

Easily create all different kinds of popups / overlays for your WordPress site and place sidebars and widgets in them.
How Popping Sidebars and Widgets works
<ul>
<li>Create Sidebars – as many as you need</li>
<li>Set up Your Overlay / Popup</li>
<li>Create Layout and Insert Sidebars – just a few clicks with the OTW Grid Manager</li>
</ul>
Popup / Overlay types
<ul>
<li>Full bars </li>
<li>Side boxs</li>
<li>Popups / Lightboxes</li>
</ul>
Unlimited Number of Sidebars
This plugin will allow you to create unlimited number of custom sidebars that you will be able to place in your overlays. Once a sidebar is created it will be available in Appearance -> Widgets section just like any other sidebar. Newly created sidebars can have <a href="http://otwthemes.com/horizontal-or-vertical-widget-alignment/?utm_source=wp.org&utm_medium=page&utm_content=docs&utm_campaign=psw" rel="nofollow ugc">vertical or horizontal widget alignment</a>.
Custom Layouts – OTW Grid Manager
Creating custom layouts in your overlays is just a few clicks job with the OTW Grid Manager. No coding is required. It is all done in a very easy to use interface.
Custom styling
Create a new class for each overlay / popup in its edit screen so you can style it however you want.
Localization/Internationalization
This plugin comes Localization/Internationalization ready. It is following WordPress I18n standards.
Full version of the plugin
<blockquote>
Upgrade to the Pro version of this plugin including tons of more features, regular updates and premium support:
<a href="https://1.envato.market/c/1246358/275988/4415?subId1=psw&subId2=2020&subId3=https%3A%2F%2Fcodecanyon.net%2Fitem%2Fpopping-sidebars-and-widgets-for-wordpress%2F8688220&u=https%3A%2F%2Fcodecanyon.net%2Fitem%2Fpopping-sidebars-and-widgets-for-wordpress%2F8688220" rel="nofollow ugc">Popping Sidebars and Widgets Pro</a> | 
 <a href="http://otwthemes.com/demos/1ts/?item=Popping%20Sidebars%20Widgets&utm_source=wp.org&utm_medium=page&utm_content=upgrade&utm_campaign=psw" rel="nofollow ugc">Demo site</a>
</blockquote>
<ul>
<li>Responsive Layouts in your Overlay</li>
<li>Visibility for any set of pages, page templates, posts , categories, tags, archives, custom post types, taxonomies, user roles, WPML languages, WooCommerce, bbPress, BuddyPress</li>
<li>Full Bar and Side Box Positioning – Header, Footer, Left and Right </li>
<li>Full Bar and Side Box – Scrolling Type</li>
<li>More Animations</li>
<li>Active Periods</li>
<li>More open/close events – on page load, on page load with delay, after a number of page views, on exit intent, from a link, number of page loads, period of time, etc.</li>
<li>Custom Styling via an interface in the back-end</li>
<li>Overlay First Load – Opened / Closed</li>
<li>Content Position – right and center </li>
<li>Show Button Label</li>
<li>Hide for small screens – on / off</li>
<li>z-index</li>
<li>Trigger from a link via Shortcodes</li>
<li>Trigger form a WP menu item</li>
<li>Support and Updates</li>
<li>Zero Coding Required</li>
</ul>

Popping Sidebars and Widgets Light

Create custom popping layouts with sidebars and widgets in just a few clicks.

WP Custom Sidebars vs Popping Sidebars and Widgets Light