Disclosed are systems and methods for placing and processing test orders and real orders. The wear indicator comprises an elongate element that forms part of the drill bit. The tool actuating assembly of the present invention provides for more efficient use of the tools of the instrument by the surgeon who is utilizing the instrument. After the subtree is created, a query corresponding to the subtree is put to the subtree for resolution. A displacement sensor is incorporated into the hydraulic actuator to provide an electrical signal that indicated how far the piston rod extends from the cylinder. In addition, a portal for the secondary access channel is defined using one or more pre-configured portal components and content management for the secondary access channel is defined using one or more pre-configured content management components that leverage content developed for the primary access channel and that customize presentation of the content for the secondary access channel.