All slides within PowerPoint are based on one of the available Slide Layouts. These layouts can be chosen when you add a new slide or you can even change the layout of your existing slides. Each of these layouts offers a different look for your slide, and the layout you choose for any particular slide will depend upon the type of slide you are creating or editing. While these available layouts seem to cover most types of slides, you may sometimes want to create a new layout based on your individual requirements.
Learn how to duplicate, rename, and edit Slide Layouts in PowerPoint 2016 for Mac.

