src/admin/class-papi-admin-columns.php
public function manage_page_type_sortable_columns( $columns ) {
		if ( in_array( $this->post_type, papi_get_post_types(), true ) || in_array( $this->taxonomy, papi_get_taxonomies(), true ) ) {
			$columns['entry_type'] = 'entry_type';
		}

		return $columns;
	}
public function manage_page_type_sortable_columns( $columns ) {
		if ( in_array( $this->post_type, papi_get_post_types(), true ) || in_array( $this->taxonomy, papi_get_taxonomies(), true ) ) {
			$columns['entry_type'] = 'entry_type';
		}

		return $columns;
	}
Add entry type as a sortable column.

@param  array $columns

@return array