Why bother to fight against the inefficiency of wrong computer programmes and wasting time and energy?
There are several harbour buildings available as commercial sets, mainly in Germany, e.g. from Wilhelmshavener Moewe-Verlag (www.papermod.com
), Mitteldeutscher Kartonmodell-Verlag (www.mdk-verlag.de
) and Hamburger Modellbaubogen-Verlag (www.h-m-v.de
). Also you could try the model railway related sites like MaKaMo, Stipp or Gleimo (some of these have freebies, too). Have a look at tutorials about Sketchup or Gimp computer programmes, there are free versions.
Kind regards -