How do you change the bottom color of a Sky?

Hello,

I am trying to make the setting of my map in space. Meaning you can see the bottom half of the hemisphere. I am using Goodsky and the I love the stars but you can only see them on the top half and not the bottom half. How can I show the stars at the bottom

too?

You need a HDR:

That one’s not free, but they are there if you look. In any event it’s on 15 bucks.

Then you need to know how to set it up: