Reply To: limit to parent and nested sub-level

So if i wanna include also sub-parent 2 and sub-parent 3 i need to add their post id also.

Is this code correct:

if ( $id == 3 ) {
$args[‘post_parent’] = array(11748, 24547, 8787);

I seperate the post id of each parent/level per comma. Thats right?

BR
Tommy