In the past, I have asked about the following, but cannot find the answer in Nabble on this forum.
I have two different couplers, but only one can be selected at any moment, if one is selected, and you select the other one, it should automatically deselect the first coupler. I want to possibly do this with more than two, I want to do it with any number of couplers. So I want to use either no coupler, or only one coupler in a selection of different couplers.
I want to do the same with stops. I have a selection of 20 different Piano sounds, but only need one of them active at any moment. I never want two of them active at the same time. Any subsequent selection of another Piano sound, should cancel any previously selected Piano sound, and only the last selected Piano shound should remain active. So I want to use either no stop, or only one stop in a selection of different stops.
I think Lynn explained it last time, but I cannot find the answer to that.
However, you will still have to work out the details, which may include the use of other switching elements and also (dummy) stops with a combination of on or off states. Apologies if I am leading you up a blind alley.