If you host a WebEx meeting – for this example a weekly update.
You as the host of the meeting can let someone else host in your absence.
That person can host if you give them the host key.
To do that:
Open the meeting you created and in the menu area WebEx click on Host Information.
(as I have highlighted) in the meeting example attached.
You can email that key to the person hosting for you.
When that person opens the meeting invite up.
They can go to the meeting click on Show Menu Bar at the top of the WebEx meeting window.
Then they click on Participant and Reclaim Host Role.
This box that person types the key you sent them.
That person is now the host.