Ahhh... bad choice of words, sorry. I meant... it will start the simulation at the StartDate and try to go NumYears further into your dataset history. I said "try" because if that history is not available, then it obviously could not achieve what you are asking.

For example if you specified StartDate 2013 and NumYears 7, then I think you'd only get about 1 year of test data.

I prefer to be very specific, based on the history .bar files I have downloaded, like this:
Code:
StartDate = 20080101;
EndDate = 20140122;
GapDays = 3; //alert if more than 3 days gap in data

(GapDays is a new feature that I also like to use.)