Thanks for the question, @patrick.white!
So one important thing to note is that Uploadcare is just the CDN in which you store the files. It doesn’t have a concept of image order beyond the order they were uploaded in.
If you wanted to allow a user to reorder the files they uploaded, you would need to do that outside of the Uploadcare widget.
This is already possible, either using one of the various drag and drop plugins available (including mine) or implementing drag and drop functionality using Bubble’s somewhat native support for it (relevant forum post)