Transfer regular customer on Steam (Warframe)

Sobsna, as above said: if you Want to transfer a regular client of Warframe in Steam. How to do it. Poked around the forums and found out for myself that it seems to be impossible to do. But that being said, not sure, because this question is a few answers, and they are not deployed. For me it is not a hot topic, because the server-same. But the steam buns - steam buns, you know. You ask well you're right-the steam version does not download it? Right answer - that the steam version weighs 18гб, but this version I downloaded from torrent and it weighed only 8GB. For me it's critical because I have a whistle (usb modem) with limited traffic. night not limited, but the download speed in incentive leaves much to be desired, then as a torrent, right up to 3мбт/comes with (Yes, for me it's just something incredible). If the answer is sad, I not particularly upset, but still would like to move to steam. Thanks in advance.