Duplicate layers with the pattern option within After Effects with many options:
Controllable duplication, randomized properties anchor point management, controllable duplication, layer coloring, layer arrangement, and much more.
The product is in the After Effects Plugins category from AeScripts, for more information about this post you can click on the home page link in the sidebar.
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Does this product work on Windowns and Mac Os? We mostly include the operating system in the title. if it is not written, it will work on Windows, and you can for the Mac version.
In order to duplicate objects:
Option to Randomize
Gives random values within a specified interval to the characteristics of transforms on the layers selected.
New changes: