Material / Textures in UDK

I've added a few textures to the surfaces in my level in UDK. To add them you can simply click and drag them from the content browser to the world. An easier way to add them quickly is by adding one, Alt+Right click on the texture and then Alt+Left click on the new surface.

To edit the texture, the shortcut is F5, rather than F4 for everything else. You can change the positioning, scaling and many other options in that menu.

Material applied to the walls