What is the best way to save Hierarchical Instanced Static Mesh Component?

Development Asset Creation
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2

Also this is my current save&load code:

void ASpawnerParent::SaveInstances()
{
	MakeSaveDirectory();

	FBufferArchive ToFile;

	ToFile << InstanceTransforms;
	
	const FString& FullFilePath = SaveDirString + "/" + "PlantSpawner" +".save";
	
	if(!FFileHelper::SaveArrayToFile(ToFile, * FullFilePath))
	{
		UE_LOG(LogTemp, Warning, TEXT("Failed to Save") );
		return;
	}
	UE_LOG(LogTemp, Log, TEXT("Save Succesful") );

}

void ASpawnerParent::LoadInstances()
{
	TArray<uint8> TheBinaryArray;
		
	const FString& FullFilePath = SaveDirString + "/" + "PlantSpawner" +".save";
	if(!FFileHelper::LoadFileToArray(TheBinaryArray, *FullFilePath))
	{
		UE_LOG(LogTemp, Warning, TEXT("Failed to Load") );
		return;
	}
	FMemoryReader FromBinary = FMemoryReader(TheBinaryArray, true); 
	FromBinary.Seek(0);

	FromBinary << InstanceTransforms;
	
	UE_LOG(LogTemp, Log, TEXT("Load Succesful") );
}