Newbie question. How do you wire a passing siding (switch at each end) using Lionel tubular track? I can run only one train at a time, and want both of my two trains (steam passenger and a trolley) to access the main line, with one being held on the siding while the other cruises around my small loop to loop pike. The passing track would be between the loops, of course. I know this is simple. Just want an expert to help. Thanks!
