How To's: How do you add a statistic to a report? Answer:
Follow these steps to add a statistic to a report.
Select the "Reports" toolbar item
Select the report you want to edit (e.g. Overall (AllGames) )
Select "Edit ...
How To's: How do I add OPS (On-base percentage + Slugging) to an overall report? Answer: NOTE: OPS = OBP + SLG
For an overall report, the following would be put in the Result field (edit report mode, add new field):
(sum(s.Single+s.Double+s.Triple+s.HomeRun+s.Walks+s.HitByPitch)*1.0/sum(s.Plate)) + ...