I need to make a flatten switch for KOKC. I have some mesh installed and there's grass coming out of the runway's. How do I figure out what to put in the scenery.cfg? I've looked at my simflyer scenery, but am at a loss what to put.

Try using AFCAD2 to fix the grass and runway, That should also fix the ICAO too...Just make the scenery center elevation and the runway the same.If you save the AFCAD2, it will place that in the FS9addon sceneryscenery folder. You wont need to enter it in the scenery.cfg.