Allow Alternate Ship To Address in AR Invoices

We use the AR module for Invoicing instead of OE. This is due to the complications in inventory control for how my facility operates.

When invoicing in AR, you cannot get to clients alternate ship to address on their profiles. The result is having to type the address in every time.

For instance, I have a client that I drop ship for. He ships to 3 different warehouses regularly, as well as to his facility. Even though I have the 3 warehouses entered as alternate ship-to on his profile, there is no way to switch to the alternate address when generating the invoice through AR > Transaction > Invoice