How can I add users to an automatic groups?

Automatic groups are different than when people are auto added based on email.

The Automatic groups are

  • trust_level_0
  • trust_level_1
  • trust_level_2
  • trust_level_3
  • trust_level_4
  • staff
  • moderators
  • admins

Those you cant add users too directly. Instead you need to give them that specific trust level, moderator or admin. The staff group is admin or moderator. See this post for more info on that.

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