An output control system of an agricultural work vehicle includes a controller, a reference indicator 78 communicatively coupled to the controller 60, and a dial 62 communicatively coupled to the controller. The controller 60 is configured to control power output through an output value range between a minimum output value and a maximum output value based at least in part on a manual input signal, to determine a current setting of the power output, and to adjust the power output from the current setting upon receipt of the manual input signal. The reference indicator 78 is configured to indicate the current setting. Adjustment of an orientation of the dial from an initial position generates the manual input signal.