Each Light Server can be connected to 4 push-button inputs for recalling individually configurable light scenes. One or several push-buttons connected in series can be assigned as a push-button group to a push-button input. On initial commissioning, a series of standard light scenes is set up, which can be recalled via the push-buttons. The installation can thus be checked and handed over even without a Light Changer. For everyday operation, the designer can use the Light Studio software to determine the functions of the push-buttons. The push-button inputs can alternatively also be used for a signal from a movement sensor, twilight switch, or a remote control.