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Available in TurboCAD Pro and Platinum only_
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You can add or remove material from a terrain around a closed, 2D profile.

1. Start with a terrain, and create a closed 2D shape, such as a rectangle.
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2. In this example, the shape is placed vertically so that part of it is below the terrain, and part of it is above.
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3. Activate Terrain Modifier, and select the terrain to modify. Then select the closed shape. Material is added or removed as needed to meet the shape.
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4. To slope the terrain around the modified shape, add an Offset value.
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   This is the result:
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