When you're presenting on a Windows computer, the Audience View in your Control Panel shows you a thumbnail view of what your attendees see.

During the session, you can right-click an attendee's name in the Attendee List, and select Make Presenter. The attendee now becomes a panelist for the remainder of the session and can share their screen.

If you promote a panelist to an organizer role, they can view and manage Q & A from the Control Panel. The panelist now becomes an organizer for the remainder of the session and has full control of the session like you.

Whoever launches the Poll can see the Poll in their own Control Panel and in the attendees' Viewers. If you're presenting, another organizer can launch a Poll so that you can view and respond to the Poll from your Control Panel.