How do those work? The editor says they would prevent units from walking on same-cliff level as the dynamic pathing thing, but it just doesn't work at all for me.
Setting manually the pathing would be a real hassle.

And are there anyways to make long stretches of Anti-Air pathings? Or must I copy-paste that small thing over and over again in line?

Any help?

Dynamic pathing blockers should block ground pathing in the directly connected area on their cliff level.
So you set them in the middle of a cliff...

I set one on some ground surrounding cliffs where the players are supposed to stay (to prevent players from unloading their cargo there). Players could still unload and move units in there.
And what about the AA pathing?

Yeah, that pathing is strange when you unload units or land units on it. For the AA pathing, you have to use them to outline whatever you don't want to be accessed.