arch-8.x-1.x-dev/modules/order/modules/addressbook/arch_addressbook.links.menu.yml

addressbookitem.settings:
  title: 'Address book'
  description: 'Configure AddressBookItem entity'
  route_name: addressbookitem.settings
  parent: arch.settings
  weight: 20

addressbookitem.admin.settings:
  title: 'Settings'
  description: 'Configure AddressBookItem entity'
  route_name: addressbookitem.settings
  parent: addressbookitem.settings
  weight: 0

entity.addressbookitem.collection:
  title: 'Address list'
  route_name: entity.addressbookitem.collection
  parent: addressbookitem.settings
  description: 'List of existing addresses'
  weight: 1