The refactoring options tends to be rather messy: It would be helpful when items/endpoints can be rearranged by hand. This would make it a much better tool and experience.
It's been a while since this idea... yet it remains the same in current ReadyAPI 3.10.0 version.
I got for instance a /version method that doesn't officially exists in the swagger, so a refactoring will delete this. I have no option to say "keep".
On top of this, a refactoring often results in an unwanted deletion of query parameters. So you might finally have an up-to-date API definition, but all linked test cases suddenly have no longer the correct query parameter... There is also -as far as I know - no way to have an updated (POST) request payload. It needs to be modified in each and every test case rest step.
The refactoring internal window is also a pain. No resizing possible, so for some items you need to scroll to the right...