The Template button on the Office Timeline ribbon in PowerPoint allows you to instantly change the look of your timeline by applying a different style or template to it. Here’s how it works:
From your timeline slide, click on the Template button on the ribbon to see your available style options.
Select a built-in template or style from the list, or even choose one of your custom templates if you have any. Office Timeline will instantly apply the selected option to your existing graphic.
Note: Applying a Swimlane template to an existing timeline is not yet supported.
If you select the Chronology Table from the list, the add-in will automatically create a new slide with your timeline’s schedule presented as a PowerPoint table.