Managing Attendees - Video & Audio - shutting off

[NJCivilWARRT]

I have a ZOOM pro account. Was searching to see if I could do the following in a ZOOM meeting.

1. Turn off sound for attendees and not for host or co-host once the meeting had started.
1. I default for attendees to shut off video and audio but they turn them back on once in the meeting
2. Can I disable video and audio so that attendees can not attend.

1. ZOOM only displace speaker and other attendees do not appear visually

Do these features exist if I upgrade my account? I appreciate the assistance. The above capabilities would make ZOOM a more pleasurable experience, i.e. attendees turning on audio and making noise or eating with video turned on.

Thank you,

North Jersey Civil War Round Table