Sony IPELA PCS-XG100 Operating Instructions Manual page 156

To swap the location of the remote and local pictures
When the displayed picture can be switched during communication, pressing
the LAYOUT button on the Remote Commander displays the indication "F1:
Switches the monitored picture between the remote and local sites." at the
bottom of the monitor.
Each press of the F1 button on the Remote Commander swaps the location of
both pictures.
To switch the display to the remote picture while receiving pictures from a
computer (HDMI)
When receiving a computer picture (HDMI) from a remote party, pressing the
LAYOUT button on the Remote Commander displays the indication "F2:
Restores the previous monitor screen." at the bottom of the monitor. Press the
F2 button on the Remote Commander to switch to the remote picture. To return
to the computer picture (HDMI), press the F2 button again.
Note
When you connect two monitors and set "Monitor Output" to "HDMI 1+DVI-I OUT"
in the Video setup menu, you cannot switch to a computer picture (HDMI) by pressing
the F2 button.
156
Switching the Picture Displayed on the Monitor Screen