This addon gives both you (the Admin) and your customers real-time tracking updates related to shipments made in the cart. While similar capability is provided in the native cart by clicking a tracking number, each tracking number is a separate click and opens a separate window/tab.

This addon presents the information in a clear table with all relevant information. The administrator sees the full tracking of all UPS shipments on the order detail page. The customer sees a summary (current status of packages) on the General tab of the order details page, and sees the full information on the Shipments tab. See screen shots below for details.

This addon has been tested with both 2.0.15 and 2.1.3. It has been tested with shipments enabled and with shipments disabled (I.e. single tracking number per order).