ShinichiN

<p>This plugin enables you to create unlimited custom sidebar/widget areas and switch existing areas. You can do this without touching your theme.</p>
<p>This plugin utilizes term meta api and so it works only with WordPress 4.4 and above.</p>
<p>Your theme needs to use <code>is_active_sidebar()</code> when calling <code>dynamic_sidebar()</code> function.</p>
<p>This will work.</p>
<pre><code>if ( is_active_sidebar( 'sidebar-1' ) ) {
    dynamic_sidebar( 'sidebar-1' );
}
</code></pre>
<p>This doesn’t work.</p>
<pre><code>dynamic_sidebar( 'sidebar-1' );
</code></pre>
<p>If you only want to output your custom sidebar, put this code on where you want to display the sidebar in your theme.</p>
<pre><code>do_action( 'dynamically_dynamic_sidebar' );
</code></pre>
<p><a href="https://github.com/ShinichiNishikawa/Dynamically-Dynamic-Sidebar/" rel="nofollow ugc">This Plugin published on GitHub.</a></p>
<p>ウィジェットエリアをいくつでも定義し、カテゴリやタグ、カスタム分類ごとに差し替えたり、投稿・ページ・カスタム投稿から使いたいサイドバーを指定したりすることができます。「スクリーンショット」のタブをごらんいただくと、イメージが湧きやすいと思います。</p>


Dynamically Dynamic Sidebar

Create unlimited custom sidebar/widget areas and switch existing areas depending on post, page, custom-post-type post, categories, tags and custom tax …

exstheme

<p>ExS Modal Widget Area will add a new widget area on your ‘Appearance – Widgets’ admin screen. After that you can add a class to any of your menu item or any HTML element or provide CSS selector of any element that can be clicked to show your widgets in the modal pop-up window. It can be also auto displayed by providing timeout in the widget area settings and also can be shown only once if the appropriate Cookie ID is provided.</p>
<p><a href="https://demos2.exsthemewp.com/exs-modal-widget-area/" rel="nofollow ugc">MODAL WIDGET AREA DEMO</a></p>
<h4>Features</h4>
<ul>
<li>Display any content in modal popup window using any widget</li>
<li>Completely free</li>
<li>Micro size (15kB plugin full zip, 3kB of CSS and 1kB of JS)</li>
<li>No 3rd party dependencies (plugins, libraries, jQuery etc.)</li>
<li>Any theme compatible</li>
<li>Show by any element click</li>
<li>Show by timeout on page load (useful for subscribe or promo banners)</li>
<li>Show only once setting</li>
<li>Fully customizable width, paddings, colors, close button, background, custom close selector, custom open selector etc.</li>
</ul>
<p><span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/f_IAI-VqRdU?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span></p>
<h3>Support</h3>
<p>Use the WordPress.org forums for community support where we try to help all users.</p>
<p>If you need help or have any questions, <a href="https://exsthemewp.com/contact/" rel="nofollow ugc">please send us a note</a>.</p>


ExS Modal Widget Area

Adds new widget area that will appear in the modal pop-up window

Dynamically Dynamic Sidebar vs ExS Modal Widget Area