Add fields during import Now you can add custom fields to all documents at once while you’re importing. This is a bit of a niche feature. It can help track the source of each document you import. I’ll walk you through it. First, add files as usual Use the (new) “Fields” interface to specify fields for these documents. Now, every document you uploaded has the field values you wrote. You can specify other field values whenever you add more documents to the document set. The original documents’ fields will have the original values. The new documents’ fields will have the new values. Export the document set, and you’ll see the field values for all documents. We hope this makes fields a little bit more useful.