Zoom options are available at the top right side after the ‘hide annotations’ checkbox. By default the video is set to ‘Fit Width’
You can adjust video zoom between 10% and 400%. You can view all comments and annotations in each zoom option which means you get a close up view of exactly what changes have been requested. In addition to the zoom % you have the option to
Click the full screen button in the top right corner next to the video speed options above the comments panel takes the video into full screen mode. All comments and annotations remain hidden in full screen mode.