- Custom post types use the native category taxonomy –
'taxonomies' => array('category'),
- Dynamically show/hide
_builtin post types (default to show)
- Dynamically show/hide non-public (non-publicly queryable) post types (default to hide)
- Add more contextual help to both the metabox and the plugin’s settings
- Add/extend functionality to allow for primary taxonomies by getting all taxonomies attached to a custom post and adding the same functionality as for categories
Depending on the publisher’s implementation and use of Yoast SEO plugin (which already has this functionality), a query can be built using the plugin’s code without adding any metaboxes or custom plugin settings. For this exercise, though, I have created the solution 100% from scratch.