Only display child pages of current page

Hi Frank,

I think that gave us what we need. Give this a try:

add_filter( 'advanced-sidebar-menu/menus/page/top-parent', function ( $top, $args ) { if ( 'wp-widget-advanced_sidebar_menu-2' === $args['widget_id'] && is_page() ) { if ( ! empty( get_queried_object()->post_parent ) && 0 === count( get_children( get_queried_object()->ID ) ) ) { // First level children with no children. (no menu displayed). if ( empty( get_post( get_queried_object()->post_parent )->post_parent ) ) { return get_queried_object()->ID; } // Second level children with no children. (second level children displayed). return get_queried_object()->post_parent; } // Any level that has children (current item's children displayed). return get_queried_object()->ID; } return $top; }, 10, 2 );