If you're unable to download the script, here's a manual (though tedious) method:
: Scans and updates expressions so they point to the newly created composition names instead of the old ones. True Comp Duplicator Script Free Download
For motion designers, versioning creative drafts or editors creating multiple show variations, building truly independent comps requires a time-consuming manual process: locating every single pre-comp, duplicating it individually, and then manually re-linking all the layers. This is where the comes in—it automates the entire process and handles the heavy lifting effortlessly. If you're unable to download the script, here's
Installing the True Comp Duplicator is a standard process for After Effects JSX scripts. Follow these steps: duplicating it individually