How to change sky?

[Naimad]

This may be a dumb question but how to I change the sky of my map in doom builder? I'm kinda new here and still learning how to use it.

Any help appreciated :D

 

[Torgo]

http://wiki.srb2.org/wiki/Level_header

The specific variable you are looking for is skynum.

 

[Naimad]

Ah thanks! That helped a lot.