Partner Center: Add subids to the Earnings area for each commission earned

It would be super helpful for Partners to be able to see the SubID that was responsible for an individual commissions. Currently, under the "Earnings" in the Partner Center, it only shows the Date, Contact, Product, Sale Amount, and Commissions. Even if we just added "SubID" underneath the Contact, it would help Partners know that the particular contact came from a particular SubID. Thanks!