Using Drupal 8, I'm trying to modify the page at "
/admin/structure/types" .This page is not a form (instead it is an entity list), so it cannot be modified with hook_form_alter.
_entity_list: The value is entity_type. Provides a list of entities using the EntityListController of the respective entity. E.g. _entity_list: view_mode returns the render array of a list of view modes.
Which hook can I use to modify an entity list ?
I have tried
and none of those is triggered.