For those of you who mess around in Garry's mod, sometimes you may want to change the skybox to give the map a different feel. Recently in gmod 13, I discovered a way to do that in game, and I thought I should share it. In the maps gm_construct & gm_flatgrass there is an area above (or below) the map where anything you put in it will appear in the skybox. These can be accessed by using noclip. As far as I know, this was added in gmod 13, however I could be wrong. Hopefully this will give some of you inspiration for new ideas and maybe even be used in machinima making. Happy building.