Hey ,
thats exactly what I did and it worked…getting some super nice clouds now! Thanks man! 
Also found that out with the key, so yeah…its all working now
I didnt really do some perf testiing just yet, but it also seems to be very optimized in general (which is ). But just out of interest, do you guys have some kind of performance tables for the Unreal Integration? For example something like: basic sky with just clouds and wind is about 1.5ms gpu time, with added fog an godrays it increases to something around 2.5ms etc. Just to get some kind of feel for it without the need to evaluate every scenario.
Besides that…I am very hyped right now and is looking amazing. Keep up the good work!
Cheers!
Daedalus