Yes, you can set the parent design area from import functionality.
Product Design Area allows your customers to design in that particular area of the product. In this article, you will get to know if you can set the parent design area from import functionality and if you can then how to do it.
Login to Backend
Navigate to Product Designer -> Manage Import/Export.
You will land on the Manage Import/Export page. Now, to set parent design from import functionality you have to set the Yes in “use_parent” in the sheet you will be uploading onto the backend.