A controller for an unloading system. The unloading system includes an unloading vehicle having an unloading apparatus and a collection vehicle having a container. The unloading apparatus is configured to direct material to the container driven in the vicinity of the unloading vehicle. The controller is configured to receive a user input signal representative of user operation of a vehicle input device associated with driving the unloading vehicle or the collection vehicle and set an attribute of the unloading system in accordance with the user input signal in order to direct the material from the unloading apparatus to the container.
