Can multiple Item Types be available a in Smart Form?

Im trying to set up a new Smart Form in iProcurement and the Item Type gets defaulted/hard coded each time.

The general smart form for a non catalog request (I believe it's the Oracle default) allows the user to select the item type from the LOV when they are creating their non catalog request.

• Goods billed by quantity.

• Goods or services billed by amount.

• Services billed by quantity.

How do I allow the user to do the same in my new Smart form?