This class is useful to add Columns, Filters and Views to a Post Type or Taxonomy List Table.
Usage example:
add_action( 'admin_init', function() {
Custom_List_Table::add_column( [
'object' => 'post',
'name' => 'custom',
'label' => 'Custom',
'before' => 'date',
'callback' => function( $post_id ) {
echo 'Hello world!';
}
] );
} );More examples you find reading the samples.php file.