Hope to set one option for host to turn

Hope to set one option for host to turn on/off the direct chat for attendees during the webex meeting.

Previously, Host can control direct chat in the meeting, but after they upgraded to the new Webex suite meeting platform, host can not turn the direct chat off, So if possible, it would be helpful if we can add the option to let host control if attendees can send direct chat or not as Webex webinar.