I never tried any of these.
On reading it again, I noticed two things.
1) They don't mention a blueprint name for the birds. So they seem to be normal scenery. But don't ask me where you set the scroll speed then.
2) For all I can remember, station boards where you can configure the name never made it into release. I am not a route builder but I see everybody designing their station boards to have one solid texture that contains all the letters. Having individual quads for each letter might kill performance. Or they found getting the spacing right was a problem.
The bottom line is that this documentation is a very valuable source for starting points but not a cook book with fail-safe recipes. Since I only ever used Blender, I was never temped to see it that way.
