I am just getting into trains again, since my childhood. When I was young one of the things I loved was operational systems, like log loading or unloading. Now I am getting into it again, yet due to space concerns I will be working in N scale. The question I have is this, are there accessories that actually work, like loading or unloading for N scale, or has anyone made working models? Planning on a 2x4 layout, but would love to have more action than just the trains.