I have and idea......good.......offer ecosystem models of stuff that those of us with Esprit could use. I would think there would be a large market for this kind of thing, but I don't know how hard it is to do. If its fairly easy, then modifying existing models for this type of use could be a new product line. Especailly if they were 2 to 5 dollars because other ecostems come with a bunch of plants etc. and cost around $20.
I did tecord tutorial and it wll come in couple weeks, or will be avalible on disk, call echosystem city.
It is how to create scalible sity with only one material, terrain and layers. here is screenshot:
btw, roofs looking with windows on purpise, you caqn change to any texture. and no models need to purchase. Ecept army of my robots marching on streets... :)