ezTalks Meetings allow the host who starts the meeting to manage the room and attendees. 

If you start a meeting on the PC-based software ( the same for Windows and Mac), you will have the ability to:
  Make/cancel a presenter
  Mute one or all participants
  Remove a participant
 
Lock the room
  Enable annotation

There is a participant icon on the bottom of the video screen which shows how many participants there are in the meeting. Click on the icon and you can see the options to manage the room and attendees as below:

If you start a meeting from the mobile app ( including andriod and ios), you will have the ability to:
Make/cancel a presenter
Mute one or all
Remove a participant

There is a participant icon on the bottom of the video screen which shows how many participants there are in the meeting. Click on the icon and you can see the options as below:

Click on one of the attendees, you can chat with him, mute him, Pin/hide his video,  or kick him out:

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