I have a couple of sales people and they sell t-shirts on different college campuses. To buy the t-shirt, individuals have to pay online at my store. I want to show the sales people(live) how many t-shirts they have sold so far. The sales data right now is all on zencart, but I don't want them to have access to all the data on zencart. How can I just show them (live) how many t-shirts they have sold?