When using a form for input, can I add multiple rows?

I am using a form to input 'New Items to be added to the POS'. Process: a form is filled out by C-Store associates when a new vendor order comes in and some of the merchandise is new and not in our POS (This means that the register has no price for the new merchandies). The form is a way to alert Accounting to add the new item to the POS. Once added, a message goes back to the store to let them know to refresh their price book and the item is added.

The problem is that multiple items can be 'new' in an order. Is it possible to have the ability to add multiple lines to a sheet from a form?