Notify Party (Custom broker) details to be added in commercial invoice report

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Hello, we have a requirement from our client where for all the international customers when they pack and ship, commercial invoice is handed over to the custom brokers/transporters to deliver the goods to the customer out of the country. For now only Bill to and Ship to details of the customer is printed on the commercial invoice report. Client want us to have another column which should have complete details of the Notify Party (custom broker) also to be added, which should be saved somewhere on the customer level. From the customer level the detail of Notify party should be