To view 3D models in the Estimating tool.
A takeoff extracts quantities from a drawing or model and associates with items in your cost catalog to create estimates. You can use a variety of tools to adjust the model to see the information you need.

Navigate the model from the camera view at varying velocities.
 icon (or press F on your keyboard)
 icon (or press F on your keyboard)Measure the distance between two objects.
 icon.
 icon.Rotate the camera from a fixed point.
 icon (or press O on your keyboard).
 icon (or press O on your keyboard).
    Visualize and analyze the internal structure of a building (such as the placement of pipes, ducts, and electrical systems).
 icon to open the sectioning tool.
 icon to open the sectioning tool. icon to hide the object in the model.
 icon to hide the object in the model. icon to hide the object in the model.
 icon to hide the object in the model.You can view the model in normal and X-Ray modes. X-Ray mode is helpful when you need to focus on certain objects without other objects blocking your view.
 icon in the toolbar.
 icon in the toolbar.