The POS is operated bay the Payload Operator (PO). In case the payload is a gimbal for example, the PO calibrates and controls the gimbal, directs it to a direction, geolocks to a target position, tracks targets, switches between IR and EO sensors, records the video and performs all operations required to operate the gimbal.
The PO may use distinct software for any type of payloads and will not cause any disturbance to the GCO.