Yes you can. Just use the date filter in the Overview tab (that's where you start when you open Poker Office).

- In the bottom of the Overview tab you can find Game Details which shows a lot of hand histories, click the button named Show All, then click the Rake button which can be found in the top of one of the columns - this will sort the hands after how much rake was paid in each hand. Highlight every hand history where more than $0 was taken in rake and then open these hand histories with the hand replayer. When you have opened the hand replayer you can see a number in the top left corner - ie. (1/89), the big number is the # of raked hands played.

Wow, that sounded complicated but it really isn't.