Can someone explain this option, what i understand is that this will eliminate most of the flat looking clouds and more 3D puffy clouds?

Hi, Yes it will generate cumulus vertial clouds growing instant of stratus clouds horizontal strechted clouds, but FPS can be reduced, you have to test.ThanksChris WillisHiFi Simulation Software Team Developerhttp://www.hifisim.com/images/asv_dev_team.jpg http://www.hifisim.com/images/asv_proud_supporter.jpg

ok thanks i'll test it, so if metar shows stratus cumulas will be used in its place regardless of cloud layer limit and cloud type?

Yes, and as the pop up help reads, "most of the time."Hope this helps,JimActiveSky Sales and Supporthttp://www.hifisim.com/images/asv_dev_team.jpg http://www.hifisim.com/images/asv_proud_supporter.jpg