Quick answer:  You can apply an ecosystem to ANY object in VUE.  Whether it is a native VUE object, terrain or something you import, ecosystems are like textures: they can be applied to anything and everything.  Essentially this means that you can grow grass, rocks or trees or anything from a hat, an automobile roof etc.  You can even use the object itself that you imported as an ecosystem object (say for example a beach ball) and grow thousands of them on any object you desire.  Welcome to the wonderful world of V5I.

G&C