In this field, you can specify where you want horizontal rule-offs to appear in the method output. If you leave this field blank, the program will try to choose a sensible default option.
This field may contain a series of entries, separated by semicolons (;). Each entry is either a single number, indicating a position in the lead for a rule-off; or a pair of numbers separated by commas, indicating a starting position and an interval. For example, 4,4 will produce rule-offs every four rows, starting from the fourth (for example, for standard treble bobbing methods). For Stedman, you probably want to type 3,6.