8.20.2. Long Mark Interval
Sets the interval between each long mark to be drawn. If the Options button is activated, the interval’s configuration can be modified.

Mark Length: Length of long mark.
Extension Length: If texts are drawn, this value sets the mark’s extension in the direction of the text attached.
Texts: It is possible either to draw the text to the Left or to the Right, or not draw the text (No text).