Orders

Hi, I see on the premium version I will be able to see the extra fields (added to the registration form) on the administration under the user info section, and they will also be used on the checkout process, which is great. And what about the orders? I am planning to a add a field for a Sales Representative code on the form registration, so it will be useful to have that info on the orders to prepare the commission for the appropriate Sales Representative easily. Is it posible? Thank you.