One trick I've learned, and probably everyone who's used the progam for a good while knows, is to use the "spray can" to help in placing objects, or trees(vegetation etc.) The different views help a lot when you are placing things in your scene, but sometimes the wireframes of terrains and such aren't sufficiently high enough resolution to accurately position something exactly where you want it. If you really want to see if something is going to be visable in a render, set your render quality to one of the lowest settings and spraypaint the object in question. If it shows up, you're good to go. I've found that it takes a lot of guesswork out of composing a scene. Dan