support-2.0.x-dev/modules/support_ticket/support_ticket.links.menu.yml

entity.support_ticket_type.collection:
  title: 'Support ticket types'
  parent: system.admin_structure
  description: 'Manage support ticket types, including default status, front page promotion, comment settings, etc.'
  route_name: entity.support_ticket_type.collection
support_ticket.add_page:
  title: 'Add support ticket'
  route_name: support_ticket.add_page