The FedEx plugin item is accessible in StarShip Server from the Plugins > FedEx menu.
Register all active FedEx accounts
Select this action if you want to send a new registration request for any account number that currently has a meter number. After the new meter number(s) are returned, the FedEx accounts will use the new meter numbers. FedEx Accounts are global so only one request needs to be sent for each account number for all locations.