We never know, he could use a script (it's no way we can use automatic bet with that way) or he did it by manually. Sometimes, we could find a huge multipler if previous bet multipler is huge too, so he "tried" to hit that multipler with bigger bet.
It's most likely with a script because there's a small delay when you do it manually and I guess he's using the skip strategy as I remember reading that discussion in the chat while I was lurking.
Afaik placing 1 bit bets is a much faster way of skipping compared to the skip button so it's better to pre roll that way if you have a big bankroll while aiming for big multipliers.
What do you mean by "skip strategy"? You mean the player doesn't play when he thinks the multiplier will be too small? Or is it something else? How the player could guess that?
You should pay more attention to what i wrote before, i've said he either use script or did it by manually

Yes that's why I showed you that's not possible to do it manually
