kb-8.x-1.x-dev/kb.links.task.yml

kb.management_tab:
  route_name : 'kb.management'
  title: 'Manage KB'
  base_route: 'entity.group.canonical'
  weight: 10

kb.kb_categories_tab:
  route_name : 'kb.kb_categories'
  title: 'Manage KB Categories'
  base_route: 'entity.group.canonical'
  parent_id: 'kb.management_tab'

kb.kb_content_tab:
  route_name : 'kb.kb_content'
  title: 'Manage KB Content'
  base_route: 'entity.group.canonical'
  parent_id: 'kb.management_tab'