Delete project when the project is not needed any more.
Select the project to remove in the Navigator.
Select the Delete action in the pop-up menu or use the DEL key.
The user will be prompted to confirm the delete. 
      The user must decide if the contents of the project should be physically 
      or logically removed.
      
      The physical delete will dereference all resources within 
      the project and remove the project from the file system. 
      The logical delete will dereference the project from the active 
      workspace and all resources within the project will remain. The project 
      can be imported back into the workspace with the action Import 
      Project
    
 
 Press the Yes button
The project is removed from the Navigator.