Ability to reorder Additional Items in Service Catalog creations

We are using a Service Catalog item for on-boarding new users.  In the Additional Items section I can easily add which other service items I'd like to be available so that tickets will auto generate as they are selected.  However, the items appear to be added in no particular order.  It would be helpful to be able to move these fields around in the order we would like them to appear.  This will also make going through each of these items easier for those who will be filling out the on-boarding Service Catalog item as they request it.