In top right corner you can navigate to DF settings. If you scroll down, you can configure Event sources, which allows for to set camera’s:
 ▪ Name – enter your preferred name
▪ Serial number of cameras. Every camera must be configured to send events to the DF.
▪ Host address – for fast access to the camera's web page Press the “Add” button to finalize adding the camera.
Below event sources config you will find Storage setup menu.