I rcently purchased a Jingle Bells train set that came with the 46605A transformer that has a plug in connection from the transformer to the track. The set included a straight track rerailer. I wanted to set up a circular track and ordered an 18 inch circular track rerailer with wiring, unfortunately the wiring for the connection from the transformer was not a plug in type How can I  get the correct wiring? is it sold separately or is there a specific rerailer. I have more than one train set and woulf like to have a straight and curved rerailer

What is the effective range(distance) with the dcc commander? Can two trains be running in opposite directions at the same time?