You can set the upload field to allow multiple files to be uploaded at the same time. This lets the user select several files (up to a limit set in the field) which will be saved as a single zip file in the platform. The zip file then behaves in exactly the same way as a single file upload.
This field allows up to five files to be uploaded.
Select multiple files, navigate to the next page, then back again, to see the zip file behaviour.