The only reason why I was considering to put attachment is because I had emergency landing above the lake as Spark suddenly started to fall down due to connection fail. Im using OTG cable as is recommended. Anyway I was lucky, quick app reset helped and I get him back before he touched the water.
Im trying not to fly too much above the water after my bad experiences. Its a shame that DJI is not selling anything in official store. I will try with DIY then Thanks!!!