Navigator Preview (3D)
To display the Navigator Preview Palette, click the shortcut button in the bottom scrollbar of any window; or use Window > Palettes > Navigator Preview.
Note: Make sure that Show from Top is chosen from the pop-up menu in the Preview’s lower right corner.
If you choose Show from Side view from the Preview options pop-up, you can easily re-set the camera height relative to the stories of the project: just click in the Navigator Preview and move the camera up or down.