tradesouthwest

Mixmat Page Mixer gives editors an easy way to sectionalize the posts and pages without knowing CSS or HTML. The plugin comes with a set of shortcodes that you can copy into your Visual Editor while writting content and make your content stand out by creating boxes or sections that will separate each content section by one third, one fourth, one half or one of several other widths. Divisions are set up using a percentage layout system to gaurantee that your blog or website will show the pages perfectly on any device. Please note that this is not a mobile first plugin so do not expect miracles.
There is a background color picker built into the Mixmat Control Panel. This will set the background color universally and if you decide you want all the backgrounds the same; you can use you can style it through the Customizer CSS that comes with WP. The option to change background color is mostly for those who have themes with set backgrounds that may cause the text to be unreadable. Have fun and enjoy. New in version 1.0.2 is a box-shadow color selector.
<h3>Notes</h3>
Have a wonderful time!

Mixmat

Mixmat Page Mixer gives editors an easy way to sectionalize the posts and pages without knowing CSS or HTML.

Marco Milesi

WP Attachments enhances the download experience and file management in WordPress. It automatically displays attachments in your posts and pages, so you don’t need to manually insert download links. 
Easily attach, unattach, or reattach files directly from the media library.
Key Features: 
– 🤖 Automatically displays attachments after post content 
– ℹ️ Backend metabox for managing attachments 
– 🔃 Quick Attach, Unattach, and Reattach actions in the Media Library 
– 🔢 Download counter with anti-spam and logged-in user filtering 
– 🧑‍💻 Developer hooks and filters for customization 
– 🛍️ WooCommerce compatible 
– 🎨 Five icon packs to choose from 
– 📜 Supports posts, pages, and custom post types 
– 🎢 Customizable themes (title, date, size, caption, and more)
<a href="https://www.youtube.com/watch?v=J7gf0hxl_z8" rel="nofollow ugc">Video Overview</a>
<h3>Contributions</h3>
<ul>
<li>Part of <a href="http://www.wpgov.it" rel="nofollow ugc">WPGov.it</a>, providing open source solutions for Italian Public Government websites.</li>
<li>Thanks to the Italian community <a href="http://www.porteapertesulweb.it" rel="nofollow ugc">Porte Aperte sul Web</a> for beta testing and ideas.</li>
<li>Metabox based on <a href="https://wordpress.org/plugins/ij-post-attachments/" rel="ugc">IJ Post Attachments</a></li>
<li>Some icons by <a href="http://p.yusukekamiyamane.com/" rel="nofollow ugc">Yusuke Kamiyamane</a>.</li>
</ul>

WP Attachments

Nice and useful plugin. The only downside is that it lacks a setting to show image thumbnails instead of a generic image icon in the edit metabox.

Show thumbnails instead of icons in metabox

A powerful solution to manage and display your WordPress media attachments in posts and pages.

Mixmat vs WP Attachments