@fields = (current_step => "New" ,
                    next_step => "NewFinal" ,
  [etc ... all the identical fields from both scraping the HTML and looking at WD]            );
                    );
     unshift @fields, csrf_token => $csrf_token if $csrf_token ;
    unshift @fields, security_key => $security_key if $security_key ;
    $res = $ua->request(POST $_[0], \ @fields) ;