This option allows a DIGIT format file with contour data to be displayed. After picking this option, a right-hand window appears with set up choices. First, there is a display flag which enables plotting of the contours. The flag can be toggled ON and OFF. Next, there is an option for choosing the file name. Picking NONE or the current filename will cause the program to prompt for a new filename. Finally, the color of the contour can be selected by clicking on the color bar displayed.