Changing lighting in areas

[Hadhafang]

In my map I have several areas, seperated from the main map by boundary to act as indoor locations but they have the same lighting as the rest of the map. How can i change lighting settings in an area of a map, or over the entire map to make it darker or lighter.. other than changing the time of day.

 

[Saia_Djinn]

fadefilters
search forum about how to use them