Original Sound on Web Client

[BethanyN]

I host Zoom Webinars by sending audio and video from our livestream application, Wirecast, through to Zoom. Because I am running Wirecast, much of my RAM is already being used, and I cannot rely on using the Zoom desktop client as well.  Since many of my events involve music, I need to use the Original Sound for Musicians setting to have clear audio come through. The person in my position previously told me that he had been using the desktop client to successfully run Zoom Webinars with Original Sound on.  I have searched all over but I cannot find any information about how to do this on the web client. 

Does anyone know how to enable Original Sound for Musicians on the Web Client?