I love this idea. I have a single data store with hundreds of project folders (about 2TB of data) synced between my two primary servers. But for my workstations, where I don't have as much local storage, I want to be able to download select project folders for work. Or on my android phone, where I definitely don't have that much storage, I'd still be able to reference individual documents or folders. This would prevent me from needing to setup hundreds of individual project shares on my two servers.