I have stored my models in a remote database using CDO/Papyrus Model repositories.
I would like to know how to enable offline working on Papyrus models located in a remote machine. And how to synchronize my offline updates with the online ones.
I assume you are asking about off-line access to Papyrus models stored
in a CDO repository. If so, this is not in the scope of the Papyrus
integration with CDO: Papyrus just connects to a repository that you
identify, whether that be a local (off-line) clone or a remote
repository. The cloning and synchronization of repositories is managed
separately by whatever means the CDO project or your own code provides.
You may find Eike's off-line repository example a useful starting point: