I keep thinking it would be helpful to be able to reorder these via the Update Documents button. Currently there is no way to do so unless you remove and then reupload, but this kills versioning.
Often a document will crop up and be required to be appended, but the order of the sig packet is set in Workflow Designer, so sometimes these end up in the wrong place.
Other times the business teams will have added and deleted documents so they end up in the wrong order.
Similar to this idea but at the Review stage: Solved: Possible to reorder documents in signature packet? - Ironclad Community (ironcladapp.com)