Mask Unshown/Unmask Shown Entities

  1. From the Mask panel, zoom in on your model so that part of it is out of view or off the screen.
  2. Click Mask Not Shown.
  3. Zoom out so that you can see your entire model again.
    The part of the model that was moved out of view during the zoom is now masked.
  4. Zoom in slightly on the model.
  5. Click Unmask Shown.
    The selected masked portions of the model within the screen are now unmasked.
  6. Zoom out so that you can see the entire model again.
  7. Click Unmask Shown.
    The entire model is now displayed.