Setting up Group Moderation of a Category

Continuing the discussion from Category Group Review/Moderation:

How do we force a group moderation to have multiple people confirm a flagged post…? Tried this and the post was automatically hidden… but what we want is for the group moderation to see the post and for more than one person from that group to respond. Ideally, multiple people will respond on whether they agree or disagree with a flag.

Thanks for any guidance. Happy Holidays.