How to Create a PowerPoint 2013 Slide Transition
Use the On Mouse Click or After options to indicate how the transition should be triggered.
If you want to control the pace of the slide show yourself, select the On Mouse Click check box. Then, the slide will remain visible until you click the mouse. If you want the slide to advance automatically after a delay, select the After check box and specify the time delay.
To apply the animation to the entire presentation, click Apply to All. This applies the animation to all the slides in the presentation.