No problem over here. If you need help just ask. However I would suggest to keep the two threads separated to avoid confusing other users.
I think you’re complicating things a bit, in the end it’s quite simple:
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Copy a meta data identifier you want to remove
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In the main script: Paste in
property deleteMetadataNames
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Repeat until everything is set
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Run the main script.
That’s it.
You could verify the main script’s result by running script 3 but that’s not necessary. You’re in the lucky position that I wrote, tested and ran the scripts on real data. They should work just fine for you too.