keep region and line IDs in export
Currently, the export assigns cryptic region and line IDs in the export instead of using the eScriptorium identifiers. I think it would be much more convenient to keep them for external treatment and reimport because the identification would be straightforward as long as you stay on one platform. I see no advantage in the currently used cryptic IDs that break these links.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information