Methods, systems, and computer program products are provided for workflow decision management. The method involves providing a plurality of NMDA receptors which differ in their subunit identity. To achieve the object according to the invention, the device includes first to fourth ports, a diode coupled between the first port and second port, a first transmission line having a length of g4, and a first element coupled in series with the first transmission line having an almost simple reactance component and nearly opening in a second frequency band. A key positioner is operably coupled to the insertion key to move the insertion key between at least two different predetermined positions on the perimeter of the insertion opening. Additionally, the need to assign more than one operation to one button is eliminated, and it is possible to avoid an excessive increase in the number of operating buttons. A load limit parameter, which represents the maximum load on the transmission due to the engine, is set as a function of the detected wear parameter.