public function manage_columns( $column, $post_id ) {

		switch ( $column ) {

			case 'trigger':
				$triggers = llms_get_engagement_triggers();

				$trigger = get_post_meta( $post_id, '_llms_trigger_type', true );

				echo isset( $triggers[ $trigger ] ) ? esc_html( $triggers[ $trigger ] ) : esc_html( $trigger );

				$tid = get_post_meta( $post_id, '_llms_engagement_trigger_post', true );
				if ( $tid && 'any' !== $tid ) {

					echo '<br>';

					if ( 'course_track_completed' === $trigger ) {
						$term  = get_term( $tid, 'course_track' );
						$title = $term->name;
						$link  = get_edit_term_link( $tid, 'course_track', 'course' );
					} else {
						$title = get_the_title( $tid );
						$link  = get_edit_post_link( $tid );
					}

					printf( '<a href="%s">%s (ID# %d)</a>', esc_url( $link ), esc_html( $title ), esc_html( $tid ) );

				} elseif ( 'any' === $tid ) {

					echo '<br><em>' . esc_html__( 'Any', 'lifterlms' ) . '</em>';

				}

				break;

			case 'type':
				$types = llms_get_engagement_types();

				$type = get_post_meta( $post_id, '_llms_engagement_type', true );

				echo isset( $types[ $type ] ) ? esc_html( $types[ $type ] ) : esc_html( $type );

				$eid = get_post_meta( $post_id, '_llms_engagement', true );
				if ( $eid ) {

					echo '<br>';
					printf( '<a href="%s">%s (ID# %d)</a>', esc_url( get_edit_post_link( $eid ) ), esc_html( get_the_title( $eid ) ), esc_html( $eid ) );

				}

				break;

			case 'delay':
				$delay = get_post_meta( $post_id, '_llms_engagement_delay', true );

				if ( $delay ) {

					printf( esc_html__( '%d days', 'lifterlms' ), esc_html( $delay ) );

				} else {

					echo '&ndash;';

				}

				break;

		}
	}