I will add the WP_query to get related posts. I have a CPT DOEN. Each post has one or more related posts using the post-field. The default code rmwb_meta works but I want the Advanced Query Builder in Oxygen to get the related ID's.
What is the correct WP_query?
global $post;
$field_id = "hoogtepunten";
$post_id = rwmb_meta( $field_id );
if ( $post_id) {
echo '<h2 class="related-content-title">Bezienswaardigheden langs de route</h2>';
echo '<div class="related-content">';
foreach( $post_id as $post) {
setup_postdata( $post ); ?>