That's a "dual-purpose" setting. The -1 is basically a "No" setting. Anything zero or above sets the ReportPosProbability= into motion. Those together then report in your text box and show on the Nav Map, where the group is, and the direction headed, with a time delay for the report from the ReportPosMin(utes) setting. You want a few set to show, such as might be seen by a "spy" or coastwatcher, but not too much, or it'll look like stock, with 50 groups a minute being reported...
