To customize a closing message to the meeting attendees, replace the text in the box under Show This Message To Everyone.
To open a new website for attendees after the meeting room closes, select Open This URL For Participants and type the URL.
You are returned to the meeting room. Select Meeting > End Meeting again.
The meeting room closes for all attendees, and the closing message appears. As the host, you can reopen this meeting by clicking the Start Meeting button that appears on your closing screen.