I use Dropbox for collaborative work between Windows workstations. One of the use is to share LibreOffice documents. Concurrent editings are normally forbidden by LibreOffice by creating a lock file like : ".~lock.notes code.odt#" for the file "notes code.odt". However, when I edit a file, I see this lock file locally, but not in the Dropbox web interface, and my coworkers do not see them in their own Dropbox.
Is there something to setup to have those files visible to everyone ?