@kattagami–

Sorry for the late reply.

You can do this with the beta, which I believe you have.

Here’s a very simple example. This code will disable any meta-box with the name “Text Fields”.

function my_disable_metabox($part_data, $folder)
{
  if (isset($part_data['title']) && $part_data['title'] == 'Text Fields')
  {
    return;
  }

  return $part_data;
}
add_filter('piklist_part_add','my_disable_metabox', 10, 2);

@kattagami– We really appreciate your support of Piklist.

Closing ticket.