Let me see if i can be clearer. Let's say I have a blank terraine, standard, and I carpet it with a grass ecosystem. Now, the whole terraine is covered. I save this eco and go to apply it to another terraine in another pic I'm working on and the eco shows only a few patches of the grass eco (no other objects in the scene). Does the size of the terraine make a difference? Or the height? Distance from camera? Also, this is kind of strange, when I apply the eco to a terraine in a new screen or scene it will initially work just as I made it. But when I copy and paste the eco to a terraine in a new screen or scene, it applies with only a few patches of the grass eco again (even after I populate) Also, before I save the newly made eco I put the presence dial all the way to full and it still renders with only a few patches of the grass. It appears I have a lot to learn about this eco system. In essence, the "eco's" that I make and save are not applying to terrains correctly. Hope I didn't do more confusing than clarifying.