I have a device that uses a different Parent Data Type to get a different number of tags. I now need to change a large number of them to use a different parent.
I used the tag export/import and changed the Parent Data Type name. This worked with one test tag with no issues. I was worried what would happen to the unused parent tags from the old parent but it seems to remove them even though they are still in the import file.
When I tried the same with a large number of tags there is now an error saying it cannot "move/rename inherited tag" and it will not let you finish the import but it already has made the only change. All the Parent Data Type names are updated and seem to be working.