I can't figure out how to load the custom story

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In other words:

Put redist\billboards\Nintendo Castle Horror into amnesia the dark descent\billboards,
redist\custom_stories\Nintendo Castle Horror into amnesia the dark descent\custom_stories,
redist\entities\Nintendo Castle Horror into amnesia the dark descent\entities,
redist\sounds\Nintendo Castle Horror into amnesia the dark descent\sounds,
and redist\textures\Nintendo Castle Horror into amnesia the dark descent\textures