Last week I wrote a post about the Create New Local option being disabled and what that can mean. In response Harry of Boost Your BIM wrote an example macro to catch us when we try to overwrite a central file with our local file. Can't help but wonder why Revit doesn't catch this sort of transaction already? I don't know if Harry plans to share this macro. He may offer it as part of his new Part 2 API Class at Udemy?