ACL settings support is on our road map. Don't have an ETA right now, but your feedback has been forwarded to our devs.

, check out this article: https://www.cloudberrylab.com/resources/blog/set-up-default-headers-to-your-uploads-with-drive/

Managing ACLs:
https://docs.aws.amazon.com/AmazonS3/latest/dev/managing-acls.html

And this article is about setting ACL with http headers:
https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPUTacl.html

Thanks for the info. I'm sure if I spent several hours or days I could figure out how to do it from what you suggested. Do you know what Http Header and Value I need to specify for read access as a default for everything?