GGU-SLAB: "Stress bulb section" menu item
When you initially go to this menu item the same dialog boxes open as shown in "Special/Define stress section". However, after leaving the graphical preferences dialog box by using the "Display" button you select the type of contours.

Once you have selected the type of contours required the program calculates the stresses along the specified section. You then see the familiar dialog boxes for the normal or the coloured contour line diagram.