I recently updated shipping prices on all 300+ of my listings using the "Increase price by" feature and I just realized that although all of my shipping prices were increased accurately, it also DELETED the shipping upgrades from ALL of my listings! I just sent a message via your web site but thought I would post here as well so I can hopefully receive help quickly. Thank you!
We also responded via email. Yes, unfortunately the current version does not support shipping upgrades. We are sorry for the inconvenience and hope to get the new version with that feature out soon.