Refactoring things in Developer is very limited. Indeed, it really only supports renaming services reasonably.
Renaming fields in a document type is to be avoided. If it is an arbitrary change (I sincerely doubt it is a “requirement”) then I’d offer that you can easily convince them that redoing all the mappings is more risk/work than the change is worth.
If you already have partners in production using this document type and naming, then such a change would really need some serious justification.
You could use search and replace using a text editor to modify the flow.xml files–but this can be risky too.
Another option to consider is instead of changing the name of the root element, add an attribute to the root. becomes . Perhaps that would fulfill the desire?
[Edit] Forgot to suggest: you should create new threads for new topics instead of covering multiple topics in a single thread.
#webMethods#edi#Integration-Server-and-ESB