[FDelegateHandle](API\Runtime\Core\Delegates\FDelegateHandle) RegisterSequenceEditor ( [UClass](API\Runtime\CoreUObject\UObject\UClass) * SequenceClass, [TUniquePtr](API\Runtime\Core\Templates\TUniquePtr)< [FMovieSceneSequenceEditor](API\Editor\Sequencer\FMovieSceneSequenceEditor) > && InSequenceEditor )