Allowing subitem creation from Workform

When using Workforms to create an order form, and/or order log, can a feature allowing subitems to be created for each order line? As in, Harry Potter completes a workform order for milk, eggs and cheese. The main item would be Harry Potter Grocery Order, with milk, eggs and cheese each being their own subitem.

Hey there is an existing feature request for this: Adding subitems to form. Maybe drop a vote.