A combine harvester comprises a storage bin for storing harvested crop, an unload conveyor, a flow gate for regulating a flow of harvested material from the storage bin to the unload conveyor, a first sensor for detecting a position of the flow gate and a second sensor for detecting a position of the unload conveyor. The harvester further comprises a controller configured to enable a user interface for receiving from an operator of the combine harvester a set point for the flow gate, an on/off indicator for the unload conveyor and an unload conveyor position indicator, presenting a graphic element including a graphical depiction of the unload conveyor, and indicating, using only graphical variations of the graphical depiction of the unload conveyor, a position of the unload conveyor, an operating status of the unload conveyor, the set point of the flow gate and the position of the flow gate.