Whether you are using the Classic editor or the Block Editor of WordPress, WP Statuses brings an API to control the post types your custom Post Status will be applied to. It also adapts the various WordPress Administration UIs to let you manage all the available statuses for you post (including the custom ones of course!).

Below are screenshots of how it looks into WordPress editors.

Classic Editor	Block Editor

This is a safely way to wait until the WordPress trac ticket #12706 and the Gutenberg GitHub issue #3144 are fixed.

PS: The Password protected visibility option is now included into the statuses dropdowns and labels for Private and Published has been renamed respectively to Privately published and Publicly published.

add_filter( 'wp_statuses_use_custom_status', '__return_true' );

Using the above filter will demonstrate how it is possible to add custom statuses for WordPress builtin Post Types.

• A new restricted status for the page's post type. Pages using this status will need the user to be logged in to view their content.
• A new archive status for the post's post type. Posts using this status will be removed from front-end loops and only viewable from the Archived view of the Posts Administration screen.

In this gist a new Post Type named "ticket" is registered along with custom statuses. It's a tiny use case showing how you can with less than 150 lines begin to build an Issue reporting system. The ticket's post type has five statuses:

• The WordPress builtin Draft and Pending statuses,
• Three custom statuses: assigned, resolved & invalid, as shown below.

WP Statuses also takes care of the Bulk Edit and Quick Edit actions of the Post types administration screens. Below is a screen capture of the Quick Edit form for an item of the ticket's post type.

To register a custom status and make it appear into the Post Type's UIs, you will use the WordPress' register_post_status() function making sure to add these WP Statuses specific arguments. Below is the list of them.

For example, to add an archive custom status to Posts, you can use the WordPress function this way:

register_post_status( 'archive', array(
		/* WordPress built in arguments. */
		'label'                       => __( 'Archive', 'wp-statuses' ),
		'label_count'                 => _n_noop( 'Archived <span class="count">(%s)</span>', 'Archived <span class="count">(%s)</span>', 'wp-statuses' ),
		'public'                      => false,
		'show_in_admin_all_list'      => false,
		'show_in_admin_status_list'   => true,

		/* WP Statuses specific arguments. */
		'post_type'                   => array( 'post' ), // Only for posts!
		'show_in_metabox_dropdown'    => true,
		'show_in_inline_dropdown'     => true,
		'show_in_press_this_dropdown' => true,
		'labels'                      => array(
			'metabox_dropdown' => __( 'Archived',        'wp-statuses' ),
			'inline_dropdown'  => __( 'Archived',        'wp-statuses' ),
		),
		'dashicon'                    => 'dashicons-archive',
	) );

• WordPress 5.0

Before activating the plugin, make sure all the files of the plugin are located in /wp-content/plugins/wp-statuses folder.