// Put the code of your snippet below this comment.
 
add_filter( 'wpt_field_options', 'func_dynamic_populate', 10, 3);
      
function func_dynamic_populate( $options, $title, $type ){
    switch( $title ){
        case 'winery-select': //select field slug goes here
  
            $options = array();
            $args = array(
                'post_type'        => 'wineries',
                'post_status'      => 'publish');
  
            $posts_array = get_posts( $args );
  
            foreach ($posts_array as $post) {
                $options[] = array(
                    '#value' => $post->ID,
                    '#title' => $post->post_title,
                );
            }
            break;
    }
    return $options;
}