[MM3-users] Can you use @list to include members in accept these non-members in v3?

In Mailman v2, one could use @listname in ‘accept_these_nonmembers’:

A line consisting of the @ character followed by a list name specifies another Mailman list in this installation, all of whose member addresses will be accepted for this list.

I don’t see this option listed in version 3. Is it no longer supported/allowed? Is there another option?

We often send email to lists of lists and have loved that @listname option to help us deliver email to 20+ lists without needing to approve the emails each time or reconfigure all the lists when another sender needs to be added.

Thank you

Tom Lieuallen Oregon State University