hey, hab das damals in C-script so gemacht.
Habe mir Buttons definiert und auf Click wurde dann der Sky gechanged.

Example:
Code:
sky skycube1
{
	type = <sky_daem+6.tga>;
	flags = cube;
}

sky skycube2
{
	type = <sky_blue+6.tga>;
	flags = cube;
}


Panel Sky_Change
{
	button = 25, 25,  Button_Sky_1, Button_Sky_1, Button_Sky_1, Change_to_Sky1, null, null;
	button = 25, 175, Button_Sky_2, Button_Sky_2, Button_Sky_2, Change_to_Sky2, null, null;

	digits(25,700,11,arial_font,1,Sky1);
	digits(25,720,11,arial_font,1,Sky2);
	
}

Function Change_to_Sky1
{
	Skycube1.visible=on;
	Skycube2.visible=off;
	Sky1=1;
	Sky2=0;
}

Function Change_to_Sky2
{
	Skycube1.visible=off;
	Skycube2.visible=on;
	Sky1=0;
	Sky2=1;
}



Gruß Sebastian


Tutorials:
[Blender]Terrain creation ENG/GER
[Blender]Low Poly Tree Modeling
[GIMP]Create a Texture for Terrains
CLICK HERE