For Qualified deals / Orders, you can add/edit order row by either one of the three way:
- From list view, click the 3-dot button, choose Update order row
- From detail view, click on plus (+) sign and choose add/update order row
- In the order row popup, click the first product group column to select what product group the preferred product exist in. Then select the product and potentially update any values like price amount, discount etc.