Floodlights at BIRK

I use a beautiful FS9 addon scenery for Reykjavik (BIRK) which is spoiled by over-bright floodlights at night.There are two screenshots taken from exactly the same place. It is almost impossible to taxi to the apron after a night landing. I have tried to dissemble the .bgl but neither NewbglAnalyze nor bglxml work - I get an 'old file' message. I am not at all experienced with this sort of thing but I wondered if there was some way I could cheat the scenery into thinking it was day time 24/7. There is some sort of switch in the .bgl which turns the floodlights off at exactly 0908Z.If anyone is willing to advise I'd be grateful. John