Every instance of EXNP eReader is stand alone unit called 'panel'.
To get to the setup screen where you can: adjust configuration parameters, add content, backup and/or restore parameters etc.
double click on currently displayed document and setting will open.
Please note: There is a small delay between double click and setup popup.
If it does not open within 4-5 second double click again.
When you are done do not forget to Save your changes.