Gefen EXT-HD-SL-444 User Manual page 122

Advanced Operation
Web Interface
Lock Matrix
Locks / unlocks the matrix. Once the matrix is locked, settings cannot be
changed using the front-panel buttons or through the Web GUI. When the matrix
is locked, the button text will read "Unlock Matrix" and a red bar will appear
across the top portion of the screen with the text "Matrix is LOCKED". Click the
"Unlock Matrix" button to unlock the matrix.
page | 112