Hi everyone,
I understand how valuable this functionality would be, especially when working with large and complex documents, and I appreciate everyone who has continued to share feedback on it over the years.
If this is something you'd like to see in Illustrator, please consider upvoting the following UserVoice request and adding your comments there:
https://illustrator.uservoice.com/forums/333657-illustrator-desktop-feature-requests/suggestions/34589659-add-folders-in-layers-panel
Your votes and feedback help the product team better understand the demand for a feature and prioritize future improvements. You'll also be notified directly of any updates posted to the request.
Thanks again for sharing your feedback, and please let us know if there's anything else we can help with.
Best,
Abhishek