I didn't mean the shadows, I was assuming you could assign a colour to the 1-7 terrain tags than the standard white light, shadows I think look amazing but I figure larger maps may not handle them so they can be disabled no?
The reason why I prefer to use terrain tags for lights is because I use majority of the regions for specific purposes.
There isn't a way to control lights using terrain tags, they're only used for shadow auto-detection and creation.
If you want to have a lot of lights, you would need to use an event calling each light, so you wouldn't need to use region or terrain IDs with them for your lighting. If you want multicolored lights, you would need to make each one in the custom light settings, then call each light by name using comments in the relevant events.
