A 20km sphere would need to rotate fairly slowly. At least slower than the clouds in the current skybox. I'm not sure how the mechanism could be got to work though a constantly moving turntable like object at 0.2rpm just sprung to mind, lol.
If you don't like subscriptions and extra perks as provided by N3V, don't go and buy a new VW Golf. You need a subscription to enable an extra 20kwh performance. Also, forget buying an HP printer as they want you to subscribe to an ink replacement service just to be able to keep printing.
The forum is superfluous! All the young trainzers and N3V tend to use discord which I personally cannot stand. It seems to be the older generations who still use the forums.
No, people are supposed to follow the directions of N3V and send a helpdesk ticket (edit: bug report https://n3vgames.typeform.com/to/xRdryu ) detailing their faults, instead of ranting on this page and posting about their faults here.
The :127 version is used in Bairnsdale to Orbost, ECML Edinburgh - Dundee, ECML Kings Cross to Edinburgh, Fall Harvest Nebraska and Midwestern Branch on my system