We really need the feature to put Public chat in "Stealth" mode so our other guests connected to the webinar can not see what others are typing. Right now we have automated webinars running with pre-loaded chat. We do sales webinars and we can not have just anyone typing anything into the chat as it messed up our sales flow. this like "Is this Live?" or typing in un-related stuff. Create a "Stealth" chat option so others can't see chat typed in. Admins can type back to that person but only that person and the Admin can see it. After running automated webinars for 10 years I can tell you this is a must have feature :)