shazdeh

This plugin enables you to quickly add beautiful modals by adding widgets to the Popup area. You can choose to trigger the popup automatically on page load, or manually, which the plugin generates the required code for you.
Since 0.4, the plugin can be extended to support any popup script library (beta stage). Now the plugin supports <a href="http://www.rockettheme.com/wordpress-downloads/plugins/free/2625-rokbox" rel="nofollow ugc">RokBox plugin</a> as well. To enable it, you must add this bit to your wp-config.php file: 
 define( ‘POPPOP_SCRIPT’, ‘RokBox_PopPop_Script’ );
You can use <a href="https://wordpress.org/extend/plugins/widget-logic/" rel="ugc">Widget Logic</a> plugin to completely take control of in which parts of your website the popups are displayed.

PopPop

Easily display your widgets inside modal and popup windows.

echoplugins

This plugin shows (reveals) IDs on admin screens that list posts, pages, custom post types and taxonomies, and others.
You can choose to display the ID in a new ‘ID’ column and/or under each row title after the ‘Edit | Quick Edit | View’ actions.
<h4>Features</h4>
<ul>
<li>
Choose where to display IDs:
<ul>
<li>in a new ‘ID’ column</li>
<li>under each row title beside the ‘Edit | Quick Edit | View’ actions</li>
</ul>
</li>
<li>
Reveal IDs in the following lists:
<ul>
<li>Posts</li>
<li>Pages</li>
<li>Categories</li>
<li>Tags</li>
<li>Comments</li>
<li>Custom post types</li>
<li>Custom taxonomies</li>
<li>Users</li>
<li>Media</li>
</ul>
</li>
</ul>
<blockquote>
⭐ OUR FREE COMPLEMENTARY PLUGINS ⭐
✅ <a href="https://wordpress.org/plugins/echo-knowledge-base" rel="ugc">Echo Knowledge Base</a> is a documentation plugin for WordPress. Create knowledgebase, docs, FAQs, and wikis easily. <a href="https://wordpress.org/plugins/echo-knowledge-base" rel="ugc">Learn More</a>
✅ The <a href="https://wordpress.org/plugins/help-dialog/" rel="ugc">Help Dialog</a> offers a chatbot-like dialog for better customer support and increased leads and sales. The Help Dialog includes FAQs, search, and a contact form. <a href="https://wordpress.org/plugins/help-dialog/" rel="ugc">Learn More</a>
✅ <a href="https://wordpress.org/plugins/creative-addons-for-elementor" rel="ugc">Creative Add-Ons for Elementor</a> helps you to write articles and documents faster and more easily using our powerful and practical Elementor widgets. <a href="https://wordpress.org/plugins/creative-addons-for-elementor" rel="ugc">Learn More</a>
✅ The <a href="https://wordpress.org/plugins/echo-knowledge-base" rel="ugc">Content Down Arrow</a> is coming soon.
</blockquote>

Show IDs by Echo

Show IDs on admin pages for posts, pages, categories, taxonomies, custom post types and more.

PopPop vs Show IDs by Echo