Is it possible to change my configuration and move uploaded content from S3 to local? and keep this new upload-to-local configuration

[pfaffman (Jay Pfaffman)]

I think what you want to do is Enable hidden setting to include S3 uploads in the backups and then make a backup, then change your S3 settings and do a restore. What I would do is create a new server and restore there and then switch to it if it works. That way you won’t break your working server.