Creo Simulate > Creo Simulate Results Window > Results for Native Mode > Graphics Toolbar > Default View
  
Default View
Select the Default command to set the view of your model back to the default orientation.
A model appears in its default view orientation when it is first created, but a retrieved model appears in the orientation in which it was last saved.
You can resume the default view at any time.
Return to Graphics Toolbar or Controlling Result Window Appearance.