Tags Role Assign Tags Create Modify Delete Contributor Y Y N N Author Y Y N N Editor Y Y Y Y Categories Role Assign Categories Create Modify Delete Contributor Y N N N Author Y N N N Editor Y Y Y Y Custom Non-Hierarchical Taxonomy add_action( 'init', function() { register_taxonomy( 'topic', array( 'post' ), array( 'label' => 'Topics', 'hierarchical' => false, ) ); } ); Role Assign Topics Create Modify Delete Contributor Y Y N N Author Y Y N N Editor Y Y Y Y Custom Hierarchical Taxonomy add_action( 'init', function() { register_taxonomy( 'section', array( 'post' ), array( 'label' => 'Sections', 'hierarchical' => true, ) ); } ); Role Assign Sections Create Modify Delete Contributor Y N N N Author Y N N N Editor Y Y Y Y