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Go to the page where you want to display the slides and click edit.
Click the + icon and search for the News Ticker macro.
(or) you can type { News, the list with news macro suggestions is displayed.Select News Ticker macro. The News Ticker macro is displayed.
Type the name of the space from where you pull the news and to help you the results are auto-populated. You can specify multiple space names.
You can customize Customize parameters according to your requirements. For more information, see Parameters.
Click Apply.
Publish the page.