easier cliffs (help)

I plan to make a lot of cliffs on my map and found it rather boring to place path blockers all over the cliff to stop units from moving across it and would like to know if there is an easier way to do this? (BTW sorry if this is the wrong section to post)

Nope, you could maybe use doodads to block it, but thats nearly the same.

You could use normal warcraft III cliffs, but they look rather ugly