With discussions in presentations, users can now comment on a shape or an entire slide, for example, or send an email notification by adding someone to a comment, software engineer Michael Thomas explained in a blog post announcing the news.
Converting Existing Presentations
Users of the new feature can also resolve comments to let collaborators know that they've been addressed, and they can give others the ability to comment on a presentation without being able to edit it. The video below demonstrates the new discussions feature in action.
To convert existing presentations to the new version of the editor, users should create a new presentation and import their slides by selecting "Import slides" from the "File" menu, Thomas said. Further details are provided on the Google Docs support site.
Google is also hosting a Google+ Hangout at 2:30 pm EST on Thursday to discuss the new presentation updates.