bbb-8.x-1.x-dev/modules/bbb_node/bbb_node.links.menu.yml

entity.bbb_node_type.collection:
  title: 'BigBlueButton content types'
  parent: system.admin_structure
  description: 'Content Types configured to be used with Big Blue Button.'
  route_name: entity.bbb_node_type.collection

bbb_node.settings:
  title: 'BigBlueButton Node settings'
  description: 'Meeting settings.'
  parent: bbb.admin
  route_name: bbb_node.admin