Probably the "Infinite" extension [1] that lets you evict files from your disk while still storing them in Dropbox. It's an opt-in feature (and perhaps only ava

Probably the "Infinite" extension [1] that lets you evict files from your disk while still storing them in Dropbox. It's an opt-in feature (and perhaps only available to Business customers?). [1] - https://blogs.dropbox.com/tech/2016/05/going-deeper-with-project-infinite/ https://blogs.dropbox.com/tech/2016/05/going-deeper-with-pro...