So I built a DUP exporter. Once configured with your API Users credentials and repository IDs you can load all the classes and slots for a repository, then select the classes and slots that you want to export ( with an option to save the export spec for reuse ) and it will generate a DUP file that you can then import like a standard DUP using the Import feature on a repository.
This is a very simple tool built in about 24 hours using Claude AI so don't expect miracles and an amazing UI but I was able to use it to move all the instances of 5 interconnected classes from one repo to another.
Github Repository : https://github.com/qtzar/essentials-dup-export
If you do decide to try it out make sure you take that snapshot of your repository
