Unity Render Stream: Is it possible to disable input from some devices?

I am developing an application that is meant to be streamed to “audience members” and “operators.” I would like only the operator’s input to be sent to and received by the application. How do I ensure the input is from an operator? Is there a way to block sending input from audience members via the web app? Thank you.

You need to cusomize the webapp. Please see the doc.
https://docs.unity3d.com/Packages/com.unity.renderstreaming@3.1/manual/customize-webapp.html