Duplicating slides is a task that can be helpful, yet its value is not always understood. The first question asked is why would anyone want to duplicate slides? There are many reasons to do so. You may want to create another slide that is similar to what you already have. You may also want to use the same slide twice, or create a slightly edited chart than what you already have on an existing slide. Duplicating and editing a slide is easier than redoing it again.