Preview files in Windows/Mac client (virtual files)

Hi guys, using ownCloud latest build. I would like to know if users with Mac/Windows clients can have file previews in their respective file systems?
I am using virtual folders for them so any file that hasn’t been downloaded they can’t see a preview for it.
Is there a way to enable previews even if the file is not physically on the computer?
I know double clicking it will download it but since they are a design team they need to be able to quickly browse previews.
Let me know if this is possible to do with virtual files enabled on the users computer.
Teo

Roadmap item, no ETA yet.

Thanks Michael!! all the best!