Smoke offers you two methods to work in collaboration with other Smoke.
The first one is the Projects browser in the MediaHub. Use it to transfer clips between your project and another one. This other project can be a local, such as a previous project you worked on, or a remote project. Or use the Projects browser to transfer clips from a project created with an older version of the software.
To work on the same shots, clips, sequences, use shared libraries. This other second method integrates directly in the Media panel, and are best used when you are working with other users on the same project.
Projects and their contents hosted in Creative Finishing applications (versions 2015 and earlier) are read-only from Smoke 2015 Desktop Subscription. That is, you can transfer into Smoke 2015 Desktop Subscription, but you cannot transfer from a Smoke 2015 Desktop Subscription to a Flame or the Flame Premium suite of applications.
You can transfer projects and their contents between Smoke 2015 Desktop Subscription systems.