Why would you need that? Just put everything you want synced into a single folder regardless of what it is, what context it belongs in, what project it belongs to, and who should be allowed to access it.
Didn't you hear? Only computer geeks with an MCSE who work as server administrators have the mental capacity and emotional maturity to organize their files. Everyone else is a stupid idiot who doesn't understand what a folder is and gets a deer in the headlights look when they sit in front of a computer. Come on. It's 1992 for crying out loud.