D-Link DNS-320L

265D-Link ShareCenter DNS-320L User Manual
Section 4 - Conguration
Click the Full Screen button to enter Full Screen Camera Mode. The viewing angle expands to cover the entire screen.
Click the 2x2 button to return to Split Camera Mode. This full-screen mode can be used in 2x2 mode and 1x1 mode.
My Surveillance - Full Screen Live Video Mode