Yoren Chang

Thanks to <a href="https://github.com/WebDevStudios/Taxonomy_Single_Term" rel="nofollow ugc">Taxonomy_Single_Term</a>, a library created by <a href="http://webdevstudios.com/" rel="nofollow ugc">WebDevStudios</a>, it made my work much easier on creating this plugin.
With Categories Metabox Enhanced, you can:
<ul>
<li>Change the built-in Categories metabox/panel to a single term UI, which means replacing the checkboxes with radio buttons or a select drop-down.</li>
<li>Apply the single term UI to other hierarchical taxonomies in the plugin’s Settings page.</li>
<li>Customized the single term UI by setting these options:
<ul>
<li>Priority and position of the metabox placement.</li>
<li>Title of the metabox.</li>
<li>If child-terms should be indenting.</li>
<li>If adding of new terms from the metabox is enable.</li>
</ul>
</li>
</ul>

Categories Metabox Enhanced

Replace the checkboxes with radio buttons or a select drop-down in the built-in Categories metabox and Gutenberg sidebar panel.

Bill Erickson

NOTE: This uses the old media gallery interface, and I have no plans to change this.
I use the WordPress Gallery a lot on websites I build. It’s a wonderful tool, but it’s hard to find. Instead of telling users “Click the first icon next to Upload/Insert, then click the gallery tab”, I created this simple plugin to display all the attached images in a metabox.
It’s also customizable for developers (see documentation).
<a href="https://github.com/billerickson/Gallery-Metabox/wiki" rel="nofollow ugc">Documentation</a>
No support will be provided by the developer

Gallery Metabox

After updating to WP v4.9 this plugin gave me a PHP error until I added an image and then deleted it. Something about an array expected. Needs attention.


Throws a PHP error

Displays all the post's attached images on the Edit screen.

Categories Metabox Enhanced vs Gallery Metabox