The Collaboration tab in the Presentation Editor allows collaborating on presentations. In the online version, you can share a file, select a co-editing mode and manage comments. In the commenting mode, you can add and remove comments and use the chat. In the desktop version, you can only manage comments.
The corresponding window of the Online Presentation Editor:

The corresponding window of the Desktop Presentation Editor:

Using this tab, you can:
- specify the sharing settings (available in the online version only),
- switch between the Strict and Fast co-editing modes (available in the online version only),
- add comments to your presentation and remove them,
- open the Chat panel (available in the online version only),
- track the version history (available in the online version only).