bat-8.x-1.x-dev/modules/bat_unit/bat_unit.links.menu.yml

entity.bat_unit.top:
  title: 'Unit'
  route_name: entity.bat_unit.top
  description: 'Unit Settings'
  parent: bat.admin
  weight: 0

entity.bat_type_bundle.collection:
  title: 'Type Bundles'
  route_name: entity.bat_type_bundle.collection
  description: 'List of Type Bundles'
  parent: entity.bat_unit.top
  weight: 40

entity.bat_unit_type.collection:
  title: 'Types'
  route_name: entity.bat_unit_type.collection
  description: 'List of Types'
  parent: entity.bat_unit.top
  weight: 30

entity.bat_unit_bundle.collection:
  title: 'Unit Bundles'
  route_name: entity.bat_unit_bundle.collection
  description: 'List of Unit Bundles'
  parent: entity.bat_unit.top
  weight: 20

entity.bat_unit.collection:
  title: 'Units'
  route_name: entity.bat_unit.collection
  description: 'List of Units'
  parent: entity.bat_unit.top
  weight: 10