Immich-go tagging unmatched assets

I'm currently importing my takeouts with IG & want to have assets with no metadata (unmatched) tagged so I can review separately from the others.

I'm currently achieving this by running 1st without the --include-unmatched command, then again with it and adding a tag.

Due to my hardware limitations, I'm doing it over several small takeout batches & wondered if there's a way just to run each 1 time & automatically tag the "unmatched" assets?