Labs can update the Payment Status on an order buy navigating to the Orders table, finding the Order, and selecting the Payment Status button. The status can then be selected for the Order.
Labs can update the Payment status of multiple orders at once on the Orders Table by selecting the applicable Orders and selecting Actions.
The Payment Status can also be updated in the Clients tab under a specific Client by finding the Client, navigating to Orders, and selecting the Payment Status button next to the applicable Order.