Working with Views > Other Viewables > 2D Illustration View > Using the Magnifier and the Global View
  
Using the Magnifier and the Global View
You can see a close-up of an area of the model using either of the following tools:
Magnifier—You can set the level of zoom in the Magnifier window, and then move the mouse around the graphics area. The magnified area appears in the Magnifier window.
Global View—You can zoom in on an area of the representation in the graphics area, and then use the display in the Global View window to indicate the area of the illustration that you are viewing. The frame of the graphics area is indicated in the Global View window by a red frame.