Is there an admin function?

Hello there,
I have a few questions before starting:

Is there some administrator function that disables participants to see each other? I don’t want my participants to see the others webcams.

Is there any function to manage who will attent my webinar? I would like to make the user to register in my webinar, so I can see who will and has come.

Many thanks.

As a work around you can stream to youtube the webinar… so several people can actively participate but other only could see…