Mute/Unmute all Attendees

Step1: Click on the pencil tool within each webinar reading 'Edit/View Webinar details' 

Step2: Join the webinar by clicking on 'JOIN ROOM'

Step3: Click on the tool reading 'SETTINGS' as indicated in the image below.

Step4: Enable or Disable the button shown in the image below to Mute/Unmute all Attendees.