Excluding road lights when deleting roads with SBuilder

[rogwen 3]

I have never thought to ask this on the forums before; I just accepted it as a fact as there doesn't appear to be a way to do it in SBuilder. When I exclude roads from an area, using the exclude function in SBuilder (either default FS9 roads or Ultimate Terrain roads, or both) the exclude does not include the lights along the roads, so at night what are really insignificant dirt tracks across barren tundra light up like a city, even though I have deleted the roads themselves! If they had originally been made as gravel instead of asphalt then there would be no lights, but unfortunately that is not the case.

 

Is there a way to dump the lights along with the roads?