You can make a participant a co-host, which will allow them to share their screen. You can then remove the co-host role after their presentation.
Important: Make sure you've taken the host role of the meeting first.
Make a participant co-host to allow them to present
To allow a participant to share their screen and present:
Locate the participant from the participant list and click More.
Click Make Co-Host.
Warning: Make sure you click Make Co-Host in step 2 above and not Make Host. The latter option will make them the only host and you will loose host capabilities.
The person can now click Share Screen to share their screen and present.
Withdraw Co-Host Permission
You can click Withdraw Co-Host Permission to remove their Co-Host role once their presentation is finished.
