Drafts design separate organization
Old designs isn't less important to us "Designers" from the final ones,
as it is considered as an evidence about the product development with the process,
But we too don't like to have a crowd work space with those old designs,
so we need something like a separate folder named "Drafts" for example so that the workspace still clean and wide while we can return to our old design easily as well,
Thanks for your feedback. Have you tried using the folders feature to organize your cloud documents? Or are you looking for something different?