These two macros gives you the ability to hide certain elements of the Confluence page in the resulting presentation - or define content that is only shown in the presentation, but not in the normal Confluence view.
This is useful if you have content that doesn't fit in the context of the presentation but still makes sense to be on the page. It might also come in handy if you want to offer presentation viewers an alternative version of your content.
What it looks like
The macro inserts a panel in your page. The content of the panel is then hidden or shown.
Example for hidden content:
Example for content only visible in the presentation: