Javascript to Typescript conversion

Hi,

I'm trying to figure out how to find the functionallity to convert existing javascript-code to typescript.

It's stated here:
http://blog.jetbrains.com/dotnet/2014/10/13/introducing-the-resharper-9-early-access-program/
that:     

"In addition, ReSharper also offers automated JavaScript to TypeScript conversion"

I found somewhere that it should in some context menu when right-clicking a function or similar?

Can anyone give me a hint where to to find this functionallity and how it works?

/Erik