The ProSim737 MCP (Mode Control Panel) module contains the autoflight logic of the aircraft. The main purpose of this module is to calculate steering commands inputed by the MCP panel and Flight Instrumentation System (EFIS) panels in the cockpit. The steering commands are either fed directly to the aircraft (autopilot system) or sent as guidance information to the pilots through the Flight Director cues on the Primary Flight Displays.
A graphical representation of these panels is shown on the screen that is fully functional and controlled by mouse.
Many inclusive drivers communicate directly with the MCP hardware, in addition, the module also contains drivers to control throttle quadrants by most manufacturers which in turn, allows realistic autothrottle movement.