1. Go to [Settings > Extended Attributes > Order]


2. You can add, modify, delete, drag and sort the extended fields here. After you add new fields, click [Save] in the top of right page.



3. After creating the extended attributes, you can now see those extended attributes on the order editing page. 


4. On the order details page, you can also view the extended attributes information of this order


5. When searching in the Order tab, you can specify the order extended attributes as the query criteria.