An exemplary embodiment of the present disclosure causes a computer of an information apparatus to: display on a display, a display screen representing at least a floor plan including one or more rooms; and when it is sensed that movement of a device icon that is movable within a region corresponding to a predetermined room associated with a type of the device icon, judge whether or not the device icon is moved out of the region corresponding to the predetermined room, and in the case where it is judged that the device icon is moved out of the region corresponding to the predetermined room, return the device icon to the region corresponding to the predetermined room.