Create a label, button or whatever with bbinterface.
Let's say you create a label under a CPUFrame frame and name it NetLabel to monitor downloads.
!---- CPUFrame::NetLabel ----
@BBInterface Control CreateChild CPUFrame Label NetLabel
@BBInterface Control SetWindowProperty NetLabel X 6
@BBInterface Control SetWindowProperty NetLabel Y 366
@BBInterface Control SetWindowProperty NetLabel Width 64
@BBInterface Control SetWindowProperty NetLabel Height 48
@BBInterface Control SetWindowProperty NetLabel Border true
@BBInterface Control SetWindowProperty NetLabel IsVisible true
@BBInterface Control SetWindowProperty NetLabel Style "Inset"
@BBInterface Control SetControlProperty NetLabel HAlign "Left"
@BBInterface Control SetControlProperty NetLabel VAlign "Top"
@BBInterface Control SetAgent NetLabel Caption NetworkMonitor "Interface1"
@BBInterface Control SetAgentProperty NetLabel Caption MonitorType 0
@BBInterface Control SetAgent NetLabel Image AutoScaleGraph "LINECHART"
@BBInterface Control SetAgent NetLabel Image.Value NetworkMonitor "Interface1"
@BBInterface Control SetAgentProperty NetLabel Image.Value MonitorType 0
...and another label to monitor uploads:
!---- CPUFrame::NetLabel1 ----
@BBInterface Control CreateChild CPUFrame Label NetLabel1
@BBInterface Control SetWindowProperty NetLabel1 X 6
@BBInterface Control SetWindowProperty NetLabel1 Y 439
@BBInterface Control SetWindowProperty NetLabel1 Width 64
@BBInterface Control SetWindowProperty NetLabel1 Height 48
@BBInterface Control SetWindowProperty NetLabel1 Border true
@BBInterface Control SetWindowProperty NetLabel1 IsVisible true
@BBInterface Control SetWindowProperty NetLabel1 Style "Inset"
@BBInterface Control SetControlProperty NetLabel1 HAlign "Left"
@BBInterface Control SetControlProperty NetLabel1 VAlign "Top"
@BBInterface Control SetAgent NetLabel1 Caption NetworkMonitor "Interface2"
@BBInterface Control SetAgentProperty NetLabel1 Caption MonitorType 0
@BBInterface Control SetAgent NetLabel1 Image AutoScaleGraph "LINECHART"
@BBInterface Control SetAgent NetLabel1 Image.Value NetworkMonitor "Interface2"
@BBInterface Control SetAgentProperty NetLabel1 Image.Value MonitorType 0