menu_link_weight_extended.routing.yml

menu_link_weight_extended.menu:
  path: '/admin/structure/menu/manage/{menu}/menu_link_weight'
  defaults:
    _entity_form: 'menu.edit_menu_link_weight_extended'
    _title_callback: '\Drupal\menu_ui\Controller\MenuController::menuTitle'
  requirements:
    _entity_access: 'menu.update'
    _permission: 'use menu link weight extended'

menu_link_weight_extended.menu_link:
  path: 'admin/structure/menu/manage/{menu}/menu_link_weight_extended/link/{menu_link}'
  defaults:
    _title: 'Edit a slice of a menu'
    _entity_form: 'menu.edit_menu_link_weight_extended_slice'
  requirements:
    _entity_access: 'menu.update'
    _permission: 'use menu link weight extended'