I need help in adding a feature to woo commerce, if you go to the product edit/new and select Downloadable product under Downloadable files there will to attributes like name and file URL and you can add multiple files, so i need a hook (action, filter) to add some more attributes except name and File URL.
As in screenshot Name and File URL are default I need to add more like File Version, file size and another custom attributes.
Please help me to add this functionality.
Thanks in advance.