1. A control module for a gas analyzer, a respirator or an anesthesia device for the guided (interactive) execution of a sequence of operating steps, which require at least partially actuation of operational controls, and wherein the gas analyzer, respirator or anesthesia device comprises a plurality of operational controls comprising: at least one selection signal generator receiving at least one request signal from the control module and consequently outputting at least one selection signal; and at least one activation signal generator generating at least one activation signal in the case of a correct operation of the operational control and for sending the activation signal to the control module and wherein the control module comprises: at least one I/O interface with a graphical user interface on which at least one visual indication of the respective position of the operational control to be operated is outputted, whereby the visual indication comprises a direction indicator, which indicates the respective position of the operational control to be operated relative to the position of the visual indication on the graphical user interface; and a device memory, in which a device operating file is stored, the device operating file comprising at least one sequence of operating steps and means for reading out the sequence of operating steps.