If you need to do an architecture work with exact mesurements, Vue will not work for you. But otherwise you can work with OpenGL (if Vue supports your video card). You can give to every object and vegetation a different color (this you even can do with the wireframe view). To place a tree (or an obect) exactly on a terrain, place it in the top view where you want it to be. Then grab it in the side view and bring it up largely over the terrain. Click "drop objects" icon (the last on bottom left). Then it will become to sit exactly where it has to be. You can resize any window to fill the screen in double-clicking on its top bar. You can do a render from the top view in selecting the TOP CAM (first select your usual cam, then choose top cam in the right window and render.) Vue 4 has a grid in the top view. If this is not sufficient, create a terrain, flatten it completely and push it under the ground. This can help you to get a better grid. When you don't need it any more, just delete it. Hope this helps a little. If you need more details or if you don't understand somethng, please write again, I will then do a screenshot for you. Guitta