There is no easy way to change the night sky and we are stuck with the old one, which has a fairly limited amount of configuration options.
I have no clue how hard this would or could be to implement, but it would make a huge difference and it would allow me to build environments which are much more immersive without having to hack around the existing skybox.
Currently I have to use a hack where I swap the geographic latitude and change the day skybox to a custom night one. I really love how the moon emits rays with my trick, but I hope this could be an official feature to make my dynamic day and night cycle easier.
