Here is possible to configure an additional mixer renderer, setting the following options:
output_renderer_optional
Render mixer optional: Select the device to use for the output signal (e.g.: NDI, SDI channel, WebRTC...).
Output line: If the selected device is an SDI channel, set "SDI" here. This field is disabled in case of an NDI device selected as render.
Name: If the selected device is an NDI channel, set here the name of the NDI signal. This field is disabled in case of an SDI device selected as render.
Render mixer different audio - External input audio source: Select the external device which provides the audio to this render.