This is a very basic question but I am not sure of the answer after reading various FAQs. I have installed the Dropbox app on a Linux desktop (Kbuntu) and a Linux laptop (Ubuntu). Both computers were converted to Linux because they have limited resources, including disk space. In both cases I could not set Dropbox to only sync the few files I need to have available on the linux boxes. Dropbox insisted on downloading 500 GB of data swamping my hard drives. Am I just stuck with this on Linux or is there a simple setting I am failing to understand? I use a couple of Dropbox files as master files that are accessed and written too by apps on Windows and IOS. I want to do the same on Linux, but I don't want everything else downloading.