1. On the template detail page, scroll until you see the template preview.
  2. Click on the button under the presentation preview that says Use as Google Slides Theme.
  3. A new window will open with a larger preview. If you like what you see, click on the Use template button in the top right corner.
  4. A copy of the document will be added to your own Google Drive account and you will be able to edit, add or delete slides.