I have a unitrack layout using k1 & K3 sets. I am going to add another layout using Unitrack Set Double Track Viaduct Set. I have a Dual Tech II 2800 controller which will run 2 trains. When I add the new double track layout, I will have 3 tracks available. Since my Dual Tech II 2800 controller has only 2 connectors to run 2 trains, how can I run 3 trains at the same time? The double track comes with 2 connectors. Can take these 2 connectors and connect them to a Kato 24-827 3-way extension cord, with this extension connected to my number 2 train connector. Will I then be able to run 3 trains a the same time or will it drain the power? I hope I explained it clear enough.