View > Advanced > Range Rejection > Activate
Defines a range or buffer around very small graphical elements that you do not want to display. The criteria is the maximum object length in screen pixels. For example if the Main view range rejection value is 50 pixels, then when a pipe takes up less than 50 pixels in any direction, that pipe run does not display in the Main view. As you get closer to the pipe, it takes up more distance on the screen and is visible whenever it takes up more than 50 pixels.
The Activate command turns on range rejection so that the elements do not display in the model.
Reducing the number of elements that Smart Review draws improves display time.
Range rejection settings are not applied to Display Set animation paths visible in your Main view.