// pos url
add_filter('op_pos_url',function(){
   $url = site_url( '/pos/', 'https' );
   return $url;
});

// bill url
add_filter('op_bill_url',function(){
   $url = site_url( '/bill/', 'https' );
   return $url;
});

//kitchen url
add_filter('op_kitchen_url',function(){
   $url = site_url( '/kitchen/', 'https' );
   return $url;
});