General DiscussionHow to download scene on my gameplays?

huh? you mean watch replays?

Download parts of my gameplays

you can't download just parts, only watch the whole thing in dota client. Or you could fraps it or some 3rd party recording while you play.

So I need some 3rd party rec.ing to make my own gameplay highlights?

yes but you can do it off the dota replay, you don't have to do it live cus the replay plays out in spectator mode so you can see anything you want.