Hello Lucia,
Thanks for following up on your question and we apologize for the delay in response. In OJS 3.1, the decision emails only get sent to the submitting author.
It is possible to get BCC’d to automated emails will also require a code modification. If you are interested in this option, please see the following post: Is it possible for editors to email reviewers without having to turn on automated email reminders? - #6 by asmecher
Later versions of OJS automatically assigns a copyeditor to every submission when one is received, if the journal only has 1 enrolled copyeditor.
Kind Regards,
Patricia