It would really help with organization if we could collapse structs and hide the unused pins, especially large ones like Break Hit Result.
There already feature like that, in struct UPROPERTY you set meta=(PinHiddenByDefault) and FPostProcessingSettings probably the biggest struct in the engine do so already, so you simply suggest to add that in to hit result. I recomand you to post feature requests to feedback forum, it usally place where Epic notice those