I’m trying out that top down rpg example and… the dialogue disappeared when I deleted the automated battle from events, along with buttons… why? Also, it used to come up as soon as previewed… how is that stopped, with only on action retained? And… for some reason, by default, at times the character suddenly zooms around… no idea what’s causing it.
Hi and welcome here 
Hard to give you an answer without more details. 
I opened the example, disabled the two groups “your turn” and “their turn”, and didn’t notice the changes you mention.
Maybe you should go back to the original example and see what you deleted. And instead of deleting, right-click and disable. That way, it’s easier to revert a mistake.
Yes, indeed.
The second block is not a sub-event of the first one, be very careful about this.