In the Bulk Purchasing Mode screen, locate the line that you want to edit.

 Double click on the product name and confirm it is now editable.

 Modify the product name by selecting any from the displayed suggestions (Make sure to edit also Qty and Cost if they must be edited as well) 

Press the "Enter". Confirm the new product is displayed and there is a "Sub" next to the product name. 

 Hover the mouse over the "Sub" and confirm the old product name is displayed as a message.

Finally, refresh the screen and confirm Sub is not displayed and the new product name is displayed properly.