This is trainz, isn't it?
Can you explain your problem in a little more detail please? From what you wrote, at this moment I'm confused as to whether you want something like an engineers siding or a marshalling yard?
Or, if you want, just search on Google Images for some inspiration: try a term like "siding" or "marshalling yard".
And about your friend, from what I can tell he is pestering you about how to create a layout and he's looked everywhere and he still can't create a layout. Has he tried surveyor mode?
