Two administrators for one list - how?

How can a list have more than one administrator assigned?

I want to allow several persons to write messages to the list, but none of these shall be “super-admin”. None of these shall be allowed to edit the lists or configuration, either.

I found that I can assign list ownership to a “non-super” admin, so this person should be able to send messages. But if I need a second person, and if I don’t want to give full super-admin permission to either of them, what can I do?


phplist doesn’t support that combination.