- Platform - Products - List (next to Add/Edit Orders)
 - There is a tab on the right of the heading bar called "Items Ordered", select it
 - Now you can choose which sort order to work with by selecting the heading tab. I selected 'Code'
 - Use the ? lookup key and type the first few characters of the code you are interested in and select 'enter'
 - It should show you the closest match in the list.
 - You can scroll up/down using arrow keys
 
Selecting an item will take you to the Order.