CostlyOstrich36

I'm taking a look if it's possible

Thank you for response. Dataset.squash works fine. But squash function squash after download all datasets, so I think it's not proper to me cuz dataset size is huge. I'll try upload at once. BTW, is this a bug? or I did something wrong?
AbruptCow41 Yes, it's possible to do so, but I wanted to upload parallelly if I can and I'm wonder it's a kind of bug.