Matthew asked me to put the comments I made in:
https://forum.simutrans.com/index.php/topic,8789.msg81769.html#msg81769 (https://forum.simutrans.com/index.php/topic,8789.msg81769.html#msg81769)
in the Public Domain, so that they can be copied, modified, updated, etc. in the Wiki.
Let it be!
Thank you so much to all the ones that dedicated their time to this wonderful game.
Thank you so much, Isidoro!