arch-8.x-1.x-dev/modules/price/arch_price.links.menu.yml

arch_price.price.config:
  title: 'Price settings'
  title_context: arch_price
  parent: arch.settings
  route_name: arch_price.price.config

entity.price_type.collection:
  title: 'Price types'
  title_context: arch_price
  parent: arch_price.price.config
  route_name: entity.price_type.collection

entity.vat_category.collection:
  title: 'VAT categories'
  title_context: arch_price__menu
  parent: arch_price.price.config
  route_name: entity.vat_category.collection