USPS Shipping Method for WooCommerce

USPS allows multiple addons for shipping like signature request, insurance, certified mail, etc. It would be great to have the option to add these and pull those rates from USPS if the customer would like to add these to the cost. Great example would be they have packages stolen so they would like a signature request done. It is an additional cost for the store but it could be put on them if they request the service.