Can someone else host a webinar that I set up? What about Q & A?

If I create/set up a webinar, can someone else host it for me in my absence? What about their ability to run the Q & A session? Do they need any special permissions or instructions?

There is a 2-day webinar I host that is typically split into two days because of two topics being presented.  I also monitor the Q & A for each day associated with the webinar/invites. The idea presented recently was to make it a 1 day format, but I cannot be in two places at the same time.  If I created two webinar invites, could I host/monitor one and then assign the other one to be hosted/monitored by another person?

We need the webinar format and not meetings. Breakout session would be ideal, but that's only for meetings and not webinar. Also, the issue of needing to monitor both sessions would still be an issue in breakout session. I cannot monitor Q & A for both times/sessions.