OSEE GoStream Deck User Manual page 98

Panel Layout and Device Features
 The output source for OUT2 is multiview by default, and unchangable.
USB1：
6.
It supports one USB output, labeled as USB1. It is connected to control computer
as external USB camera for live Apps. It acts as a USB UVC/webcam output, set
its output source by Setting→output source→UVC settings.
Figure 4.2-4 Multiview Display
Figure 4.2-5 Output as Webcam
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