Hi viret56,
A few years ago, QuickBooks developed the ability to add multiple ship to address for their customers.The QuickBooks SDK though, doesn`t allow any developer the ability to transfer over multiple ship to addresses for the customers and that is the reason you don`t see that functionality in Method.
The only way around it, is by customizing the screen where you can add multiple ship to addresses for the customer table, but because of the SDK limitation, that information won`t be transferred to QuickBooks.
I hope that helps.
Ronen