There is an empty above the building that is the parent of all the objects called Elks_building. You can use this to move the entire building around. For night scenes, this model has a number of light emitting objects. 1. The neon Kels sign has a shader called elksNeon. It's a mix shader comprised of a glass shader and an emitter shader. By ajusting the Fac on the mix shader value, you can dial in how much light you want to emit. -1 is full emission and 1 is full glass. The strength of the emission shader is set to 5 which is quite low. You might want set it higher. 2. There are four other emission shaders assigned to various objects. One is called light and is usually for outside light bulbs. A second one is called light_interior and is usually for interior lights. The third is light_markee which is for the fluorescent lights inside the marquee. The fourth shader is light_2 which is for the lights in the canopy of the movie theater. The strength of these lights are currently set for daytime and must be turned up much higher for night time rendering.