entity.routing.yml

entity.display_mode:
  path: '/admin/structure/display-modes'
  defaults:
    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
  requirements:
    _permission: 'administer display modes'

entity.view_mode_list:
  path: '/admin/structure/display-modes/view'
  defaults:
    _entity_list: 'view_mode'
  requirements:
    _permission: 'administer display modes'

entity.view_mode_add:
  path: '/admin/structure/display-modes/view/add'
  defaults:
    _content: '\Drupal\entity\Controller\EntityDisplayModeController::viewModeTypeSelection'
  requirements:
    _permission: 'administer display modes'

entity.view_mode_add_type:
  path: '/admin/structure/display-modes/view/add/{entity_type}'
  defaults:
    _entity_form: 'view_mode.add'
  requirements:
    _permission: 'administer display modes'

entity.view_mode_edit:
  path: '/admin/structure/display-modes/view/manage/{view_mode}'
  defaults:
    _entity_form: 'view_mode.edit'
  requirements:
    _entity_access: 'view_mode.update'

entity.view_mode_delete:
  path: '/admin/structure/display-modes/view/manage/{view_mode}/delete'
  defaults:
    _entity_form: 'view_mode.delete'
  requirements:
    _entity_access: 'view_mode.delete'

entity.form_mode_list:
  path: '/admin/structure/display-modes/form'
  defaults:
    _entity_list: 'form_mode'
  requirements:
    _permission: 'administer display modes'

entity.form_mode_add:
  path: '/admin/structure/display-modes/form/add'
  defaults:
    _content: '\Drupal\entity\Controller\EntityDisplayModeController::formModeTypeSelection'
  requirements:
    _permission: 'administer display modes'

entity.form_mode_add_type:
  path: '/admin/structure/display-modes/form/add/{entity_type}'
  defaults:
    _entity_form: 'form_mode.add'
  requirements:
    _permission: 'administer display modes'

entity.form_mode_edit:
  path: '/admin/structure/display-modes/form/manage/{form_mode}'
  defaults:
    _entity_form: 'form_mode.edit'
  requirements:
    _entity_access: 'form_mode.update'

entity.form_mode_delete:
  path: '/admin/structure/display-modes/form/manage/{form_mode}/delete'
  defaults:
    _entity_form: 'form_mode.delete'
  requirements:
    _entity_access: 'form_mode.delete'