Thank you! So, does that mean I should update the schema and tuples like this?

definition team {
  relation member: user with login_team_scope
  permission is_member = member
}

definition contents {  
  relation allowed: team with login_team_scope
  relation enabled: contents#allowed
  
  permission member_view = enabled->is_member
}

And to enable the content, I would just write the tuple:

contents:1#enabled @ contents:1#allowed

, right?