Currently, when creating a webinar as an event, only one organizer can be set up.

Although co-sponsors can be set from Teams after the event is created, it would be more convenient for users if all co-sponsors could be set at once during the event registration process in Dynamics 365.

Also, it is not possible to change the details of the co-organizers (e.g. date and time), so it would be more convenient to be able to set multiple co-organizers.