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Join the Webex session and wait for the presenter to share their screen.
Turn off your Camera by clicking on Stop Video.
Click on Layout and change view to Side by side.
Close the Participants and Chat side bars.
Click on the window divider and drag it to the left to expand the camera window.
If there are other participants in the session, slide the second window divider to the right.
The camera image will now be close to the size of the content window.
Final Result:
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