Host-based projects behave similarly to workstation-based projects with the following exceptions:
If changes to the structure of the project are required, the definitions on the remote system must be updated and the projects on the workstation refreshed. To refresh projects on the workstation, you must disconnect and reconnect to the system that contains the project definitions.
Because project definitions reside on the remote system, host-based projects are not persisted on the workstation. They are removed when you disconnect from the system that contains the project definitions.
Each system you connect to may or may not have host-based projects enabled. For a system with host-based projects enabled, no projects associated with that system are visible in the z/OS Projects or Enterprise Projects view until you connect. For a system without host-based projects, any existing projects associated with that system are visible as soon as you open the z/OS Projects or Enterprise Development perspective.
If you require projects that persist after disconnecting and contain resources on a system with host-based projects enabled, you can set up a user ID on that system that does not have a corresponding user folder. If you connect with that user ID, you can create workstation-based remote projects that are persisted after you disconnect.