Vertical Skyboxes

Is it possible to make the 3d skybox go “down”?

As in … being at the top of a tall skyscraper, and the bottom 4/5ths are rendered 1/16th scale in the skybox, and only the top part is playable?

It is possible. Just make it the same way as normal, with the building brushes in the adequate place beneath the sky_camera.

Okay thanks! Also, is it normal to have my unlocks disabled when f9ing my maps? I just noticed that when I tried to see if I could forcejump onto a ledge and the FaN didn’t show up. It didn’t work for any other unlocks either …