An agricultural working or harvesting machine has at least one working unit and a drivers cab in which, in a basic electronic display area of a display unit, several machine and/or crop material parameters set up in different functionality windows are visualized. The machine and/or crop material parameters set up in the functionality windows are activated and controlled using an operating device, and, in the working mode at least, at least one additional display area that includes the functionality window superimposed on the basic display area is displayable in the display unit, it being possible to control and activate the at least one functionality window of the additional display area using at least one separate operating device.
