A control system for an agricultural working machine has a control device which is connected, in terms of signals, to a display unit, a ground speed control lever, and a control panel, wherein at least the ground speed control lever comprises multiple control elements. The display unit is designed as a touch-sensitive screen including one or multiple visualization panes and several virtual control elements. A preferred quick-select functionfrom a plurality of different quick-select functions for adjusting a performance parameter of the working machineis assigned to one of the control elements of the display unit, of the ground speed control lever, and of the control panel, the performance parameter being depictable with the aid of the display unit upon activation. The quick-select function can be activated with the aid of the display unit, and/or the ground speed control lever, and/or the control element.