Each button has a Click interaction with an empty Open Link action that you can set to your desired page.The numbered buttons are all assigned to the same selection group so that selecting one will automatically unselect the others. (Right click a button and choose Selection Group to manage this.)The numbered buttons also have a Selected style effect that turns them blue when they're set to Selected. (You can change this color in the Interactions pane.)Button 2 is Selected by default. You can right-click it and uncheck Selected to change this. Set a different button to Selected on each page you add this control to.
