Google Play Games... Saves transfer.

Does anyone here know, How to transfer the Google Play Game saves to a new e-mail/google account?

I have so many games and I am on lvl 16 now. I don't won't to lose saves but i need to change that.

A few guides here but there doesn't seem to be a way really:

https://www.google.com.au/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=transfer%20google%20play%20saves%20to%20new%20email

thanks, ill check it