Hello. According to the doc and tutorials on YouTube, you need Houdini 18.5.532 to create a city. I have been in contact with SideFX for 2 days. I received the version, but according to SideFX there is no longer any way to activate a license for it and they recommend a version from 20.5. Does that work just as well or is 18.5.532 actually the deciding factor?