Buttons can contain multiple actions i.e. speak a prompt while also navigating to a new page.
• Click on Edit Mode
• either right click on a blank spot and choose Create New Button or right click on an existing button and choose Edit Button
• select the Actions tab in the Button properties window
• use the drop-down list to select each action and Add it to the listing of actions
• click OK in the upper-left corner of the button properties window when finished