I found the same problem. We are a Canadian company with CAD and USD customers. The home currency is CAD. I have to invoice CAD to Canadian customers and USD to US customers. I set all customers in these 2 categories, no problem. But when I tried to set CAD or USD in products and Services, I cannot. It is only in CAD. Is there a solution for this? I need to have USD in my product list for invoicing our US customers.