![Dell U4919DWb User Manual Download Page 55](http://html.mh-extra.com/html/dell/u4919dwb/u4919dwb_user-manual_84167055.webp)
Operating the Monitor
│
55
Video Swap
Select to swap videos between main window and sub-
window in PBP mode. Press the
button to swap
main window and sub-window.
Contrast (Sub)
Adjust the contrast level of the picture in PBP Mode.
Press the
button to increase the contrast and press
the
button to decrease the contrast.