You can now modify
Taxonomy columns using the same methods as you would for a
PostType. For example:
// Create a taxonomy.$genres = new Taxonomy( 'genre' );// Add a column to the taxonomy admin table.$genres->columns()->add( ['popularity' => __( 'Popularity' ),] );// Register the taxonomy to WordPress.$genres->register();
Please refer to the PostTypes column documentation for more on how to work with the column manager.