If you want to restrict a Snaplex to only be available to a particular project, you can move that Snaplex to that project.

To move a Snaplex to a project:

1. In Manager, select the Shared directory.
2. In the list on the right, find a Snaplex.
3. Select the checkbox, then click Move.
4. Select the project to move it to.

Right-click on the Snaplex to get more details about that Snaplex.