This is quite a nice little concept in this plugin. I appreciate the effort gone into it. I just "tried it out". I found out that when I would go to do my edit of a Product in Woocommerce, it empties the fields. When you "go back in" to edit a product... the fields are emptied on last update. They will show up once... but go back in, and it's empty.
So, folks using Woocommerce may have a conflict with edit product like I did. :) Just letting folks know... but thank you for what this did. If there wasn't a conflict I might have kept this plugin.