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As stated in earlier post, I wish to add to this thread.
With the addition of the up and over expansion, I am planning on a little Christmas town with lights, built on a 4' 4' sheet of plywood. To be added to the HO-15 layout. There will be no turnouts. I know that I will need a separate power source for the lights and track power. Where do I place the plastic insulators coming off the main line and the return spur?
I would like to make this up and over ovel a continuous run coming off the main line that is there. Any help, diagram or instructions would be helpful.

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