ELsMystERy

Easy Taxonomy Support, by <a href="http://spectrumvisions.com" title="Spectrum Visions" rel="nofollow ugc">Spectrum Visions</a>, makes it easy to add post tag and category support to pages and custom post types.
Custom post type support will prevent post tags and categories that are associated with custom posts from returning “nothing found”, or 404 errors. With the page tags and/or categories enabled, you can add tags to pages and assign pages to categories.
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Features
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Add tags and categories to WordPress pages.
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Allows tags on custom post types with the “post_tag” taxonomy to function without producing errors.
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Page tags will show up in your tag cloud.
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Interacts with <a href="https://wordpress.org/plugins/q-and-a-focus-plus-faq/" title="Q & A Focus Plus FAQ" rel="ugc">Q & A Focus Plus FAQ</a> so that tags on FAQs are not broken if Easy Taxonomy Support is deactivated.
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Easy Taxonomy Support does not:
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Add the “post_tag” or any category taxonomies to registered custom post types. Custom post type support only works if you can already add tags to custom posts.
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Display categories or tags at the bottom of pages.
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Clean your house, mow your lawn, or improve your love life. If we can add these features in the future, we will.
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Easy Taxonomy Support

Use post tags and categories with pages and custom post types.

Nikunj Hatkar

TaxoFilter Admin enhances the WordPress admin experience by providing customizable taxonomy filters for all post types.
The plugin is open source and hosted on <a href="https://github.com/nikunj8866/taxofilter-admin" rel="nofollow ugc">GitHub</a>. If you have any issues or feedback, please open an issue there.
Key Features:
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<li>Automatically adds taxonomy dropdowns to post list screens</li>
<li>Works with posts, pages, and custom post types</li>
<li>Allows administrators to select which taxonomy filters to display via screen options</li>
<li>Clean, developer-friendly code</li>
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TaxoFilter Admin


The functionality in this plugin is golden and very useful for a cms. It should be in core


This should be iin core

Adds customizable taxonomy filters for posts and custom post types in the WordPress admin area.

Easy Taxonomy Support vs TaxoFilter Admin