A graphical user interface is disclosed for controlling a harvesting system, the harvesting system driving each of two shaking actuator frequencies individually, the user interface setting or displaying the frequencies of the two actuators as a Value-Time User Interface (VTUI). The VTUI shows shaking parameters in the vertical axis against time in the horizontal axis, the VTUI able to be used to control the shaker in real time, to create and edit a shake pattern, and to display values of shake parameters as the shake is occurring.
