If you wish to allow your audience to send in comments while holding your presentation so that you can get feedback throughout the session you can enable the comments from audience feature.

To enable this feature from your presentation edit view:

> 'configure' > 'comments from audience' > 'expand':

You can also toggle this feature on and off during your presentation by opening the presentation menu at the bottom left of the screen or simply by using the keyboard shortcut 'e':

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