In meeting host controls

As a host (or co-host) of a meeting you're in control. Using the desktop application you'll have a menu bar at the bottom of your Zoom meeting with a variety of controls.

• Security - This is where you'll be able to perform in-meeting security options such as enabling a waiting room, locking a meeting, and allowing people to un-mute themselves.
• Participants - Who's currently connected to the meeting? You can also mute people, promote them, or remove them from this menu.
• Chat - Helpful to share links during a discussion (for example).
• Share Screen - Share your screen, or a particular application view with attendees.
• Record - Start a local or cloud recording. During a record this menu icon will change to pause/stop.

Support links for additional assistance: 

Host and co-host controls in a meeting (Zoom support)

Runtime – 4 minute, 6 seconds