Allows the user to select what is displayed

Allows you to show or hide the markers.

Allows you to show or hide the grid.

The Contours option allows you to select which contours are drawn to the screen at any given time.  Any combination of contours may be chosen from the Contours dialog.

See the “Maxsurf Reference” section for more information on Contours.

Displays a rendered view of the model in the perspective view.