These settings determine the layout in the plot.
If you want to display the limit curve in the plot, make sure that is checked.
If is checked, the part of the curve that is outside the specified limits will be given a different color and line style. The colors and line styles is set clicking the button shown below.
Clicking the button will display the dialog shown below for setting curve styles and colors.
The color of the curves is set by clicking at the color field . The line width is selected from the line width list box. The line style is selected from the line style list box .