Scenario Editor Terrain Help

[mattingramdrums]

I would like to know how to make more interesting terrain in the scenario editor like in videos like these 

https://www.youtube.com/watch?v=1LydPVHIA-s 

The borders of the park are jagged and not just a square like it is normally. I do notice that the park fence is a few squares further out from the terrain though, and in a square. are they just raising the terrain into those shapes leaving the actual park border further below? and how is it that the land where the park fence is on is invisible/black?

Thanks for any help

[X7123M3-256]

6 hours ago, mattingramdrums said:

are they just raising the terrain into those shapes leaving the actual park border further below? 

Yes - you can't have a non square map, but you can hide parts of the map that you don't want.

6 hours ago, mattingramdrums said:

and how is it that the land where the park fence is on is invisible/black?

Because they place black scenery objects over it which have the same color as the background. This gives the appearance of having a non square map.