A co-host has almost all the functionality of a host, except, the co-host cannot start the webinar. The host cannot make anyone a co-host until the webinar starts. If an alternative host was added prior to the start of the webinar, they will become a co-host once they log into the webinar.
Promote to Co-Host
Once the webinar has started, a panelist can be made a co-host. To make a panelist a co-host, in the Participants list, ensure you are viewing the Panelist and hover over the name of the person and select More.
Select Make Co-Host.
A confirmation will display. Select Yes.
Host Option for Co-Host
The webinar host has a variety of options for the co-host. To view and select the options, from the Participants list, ensure you are viewing the Panelists (hosts and co-hosts are listed in the panelist area), hover over the co-host and select More. The options will be displayed.