Currently, the Import process in insight does not show the  'Create predefined Configuration' button after the initial import setup is created. In case the user wants to use a file with additional fields, then they will have to start from scratch, but cannot create the predefined configuration again.

For example, if we had a JSON with 5 attributes, made the import config with a predefined structure, then added a load more attributes into the json, you could hit the predefined structure again and it'll add all your attributes as new object types instead of having to start from scratch and then try to merge it all, also the benefit of the predefined area is it doing the predefined configuration where it'll do all your import IQL's attribute = $datalocator for example