You aren't answering my question sufficiently. If someone limps and sees the flop but folds on the flop putting no more money in, is that "playing with"? What if he sees the turn and all of the money goes in on the river? Is it a certain percentage of his stack he must contribute to count as playing with? If so, what percentage would that be? You need to be able to quantify these kinds of details very precisely in order to get a meaningful answer out of the PT4 stats system.
We already have reports broken down into different positions. There's a By Position option on Statistics -> Overview and when you click that it will show you a report with stats broken down into one row by position.