80402 - ECHO/PULSE - Deleting source pages or notebooks using Echo
How can I delete pages from my source notebook or delete the notebook itself using Echo/Livescribe Desktop?
Currently there is not an option to delete pages directly from a source notebook or to delete the notebook itself from Echo or Livescribe Desktop and still keep it synched with your smartpen.
However, you can archive the notebook from your smartpen and then delete pages or delete the entire notebook from Echo or Livescribe Desktop.
For more information please reference 80404 - How do I archive a notebook using Echo or Livescribe Desktop?