Dell UltraSharp 42.51" 4K Monitor - Manual (Page 48)

48 | Operating the monitor
Front-panel button
Use the buttons on the front of the monitor to adjust the image settings.
Front panel Description
1
Up Down
Use the Up (increase) and Down (decrease) buttons to
adjust items in the OSD menu.
2
Previous
Use the Previous button to go back to the previous menu.
3
Next
Use the Next button to confirm your selection.
4
Tick
Use the Tick button to confirm your selection.