Wow great, thanks for that. Looking froward to try it. I hope it will work well with WaveWorks in the upcoming merged branch. 
BTW, I noticed Flex 0.8.0 verison in your site. Any news about dirt/sand shader for Flex coming? In UE4 Flex and in Flex demo there are samples where you interact with sand and it is heavy and behaves diffrently from water when you walk on it, but there are only the interactions balls for the time being. Will you release sand/dirt shader with teh water shader or it will be in a future release? Thanks.