If your slideshow will be viewed in a platform where the viewers will be controlling its playback, you can provide some navigation controls for the viewers by creating hyperlinks that link to particular slides, stop the slideshow, and trigger other actions.
To create a slideshow that is controlled entirely by hyperlinks, you can create a hyperlinks-only presentation, in which the pointer appears on slides with hyperlinks.
During a hyperlinks-only presentation, the pointer appears only on slides with hyperlinks, by default. But you can set a preference to make the pointer appear whenever the mouse moves.
Set up your slideshow using hyperlinks to navigate to particular slides.
For more information, see Jumping to a Particular Slide.
In the Document pane of the Document inspector, choose “Hyperlinks only” from the Presentation pop-up menu.
Choose Keynote > Preferences, click Slideshow, and then select “Show pointer when the mouse moves.”
To learn about creating a hyperlink that stops the slideshow, see Creating a Stop Slideshow Button Within Your Slideshow. If you want to prevent unauthorized viewers from stopping the slideshow, you can require a password to stop the slideshow. For details, see Stopping a Presentation.