Hello there. My small design studio are all working off Dropbox for our server. We are on Macs, have the Dropbox app installed and access our files via Finder. We regularly work on the same files and I've noticed that we can all have the same file open at once, and won't get a warning until we hit Save. This is not ideal. Is it possible to set Dropbox to prevent you from opening a file that someone already has open? Thanks in advance for any help.