title: Create linked clones of objects in PowerPoint
body: <p>Many graphics programs support dynamic clones of objects, i. e., whenever you change anything on the original object, it'll change all clones right away in the same manner. The reason I need this is that I have many copies of one and the same graphic across several slides. Ideally changing one should also alter the others.
  Google didn't get me any further. Is someone aware of such a functionality?</p>