custom_purge.links.menu.yml

# Focus cache menu items definition
custom_purge.admin_settings:
  title: 'Custom purge settings'
  route_name: custom_purge.settings
  description: 'Configure custom_purge settings'
  parent: system.admin_config_system
  weight: 99

custom_purge.url_purger:
  title: 'Purge urls from caches'
  route_name: custom_purge.url_purger
  description: 'Clear drupal/ varnish/ cloudflare caches'
  parent: admin_toolbar_tools.help
  weight: 99