Hello, I am new to model railroading and received a starter set. kato N gauge set M2 with turnouts. I would like to be able to park a train on the turnout while operating a 2nd train on the layout. Do I have to buy DCC for the engines and a DCC transformer. or is there some type of switch I can buy to switch the power off on the turnout track only while keeping power to run the main track layout. Thanks for any help and suggestions you can give me.