I tried searching for a tag opc item path but I got no results, despite having an instance of it open in front of me. The tool only seems to return results from UDT Definitions.
Bump. The issue I believe is that the find/replace tool only finds things that are defined in the things you’re looking in. E.g. a UDT definition that defines say the OPCItemPath within a tag and is not overridden within the instance will not show up when you copy the json of the instance, and hence won’t show up either in the list of results in the find/replace tool. To me, this is a defect, and all locations should be returned, regardless whether they’re defined at the parent level or not.