HelgaTheViking

Replace the default taxonomy boxes with a custom metabox that uses radio buttons… effectively limiting each post to a single term in that taxonomy.
A plugin options page allows the user can select which taxonomies she’d like to switch to using the custom radio-button style metabox.
Originally based on the the <a href="https://github.com/stephenh1988/Radio-Buttons-for-Taxonomies" rel="nofollow ugc">class by Stephen Harris</a>
<h4>Support</h4>
Support is handled in the <a href="https://wordpress.org/support/plugin/radio-buttons-for-taxonomies" rel="ugc">WordPress forums</a>. Please note that support is limited and does not cover any custom implementation of the plugin. Before posting a question, read the <a href="https://wordpress.org/plugins/radio-buttons-for-taxonomies/#faq" rel="ugc">FAQ</a> and confirm that the problem still exists with a default theme and with all other plugins disabled.
Please report any bugs, errors, warnings, code problems to <a href="https://github.com/helgatheviking/Radio-Buttons-for-Taxonomies/issues" rel="nofollow ugc">Github</a>

Radio Buttons for Taxonomies

Thank you so much for this plugin, so easy to use and makes creating a single category situations much easier.

Oh this is a life saver!

JUST WORKS

Many thanks to the author for this great plugin. Does one things and does it very well. Works with classic editor and block editor.

5 stars is not enough. Works with Gutenberg

We've been using this plugin for longer than we can remember, never had any issues whatsoever, highly recommended!

Excellent

Replace the default taxonomy boxes with a custom metabox that uses radio buttons... effectively limiting each post to a single term in that taxonomy.

Scott Reilly

This plugin uses a combination of WordPress hooks, CSS (when possible), and Javascript (last resort) to removed specified admin interface elements. These elements may be considered by some to be superfluous interface elements that are undesired for one reason or another, so this plugin aids in their visual removal.
Each admin interface element is individually selected for removal. The elements that can be removed are:
<ul>
<li>The header WordPress logo (bear in mind this functions as a menu) in the admin bar</li>
<li>The home icon next to your site’s name in the admin bar</li>
<li>The “Howdy,” greeting before your username in the admin bar</li>
<li>Your username link to your profile in the admin bar</li>
<li>Your avatar in the admin bar</li>
<li>The Dashboard menu link in the sidebar</li>
<li>The contextual “Help” link</li>
<li>The footer links</li>
<li>The WordPress version in the footer</li>
</ul>
(There is an associated screenshot which points out these different sections.)
Note: These settings are global and will affect all users who are able to visit the admin pages.
Links: <a href="https://coffee2code.com/wp-plugins/admin-trim-interface/" rel="nofollow ugc">Plugin Homepage</a> | <a href="https://wordpress.org/plugins/admin-trim-interface/" rel="ugc">Plugin Directory Page</a> | <a href="https://github.com/coffee2code/admin-trim-interface/" rel="nofollow ugc">GitHub</a> | <a href="https://coffee2code.com" rel="nofollow ugc">Author Homepage</a>

Admin Trim Interface

Customize the WordPress admin pages by selectively removing interface elements on a per-user basis.

Radio Buttons for Taxonomies vs Admin Trim Interface