As far as I can see, once you have made a list of approvers in Machform, you can't change the order in any way; if you have made a mistake in the sequence of approvers, you just have to start over from scratch. If I have just missed something and this is possible somehow, someone please let me know how!
I may be setting up a form with a long list of approvers soon and I expect it to be an incredibly tedious process. It would be great if there was a way to change the order of the approvers within the web interface without having to delete them all (at least potentially) and then add them again. I would prefer to be able to drag and drop the approvers to new positions in the list, but I would welcome up and down buttons that would let me move the approvers around one position in the list at a time.