Hi everyone. Thanks for continuing the discussion. As for your question BOSSbert, you're right! Making these kinds of changes won't impact previous transactions. 

ZeeShan Ayub, I can appreciate that this process may take quite a while depending on how lengthy your item list is. I know how valuable your time is.

At this time, each item will have to be manually edited one-by-one. I'd be happy to pass on your feedback about this to my team, and I'd suggest you do the same on your end. You can do that by clicking the Gear icon > Feedback.

I hope this helps clear things up! If either of you have any other questions, please don't hesitate to reach out to our tech support team. 

Cheers.