- **Duplicate selection per language** — select some text boxes, a table, or
  a group, and get one translated copy of that cluster per language, stacked
  below the originals with the layout preserved. Highlight text inside a box
  instead and the translations are appended as new paragraphs.
- **Duplicate current slide per language** — one translated copy of the slide
  per language, inserted right after it.
- **Duplicate all slides per language** — the same for the whole deck, in
  order: slide 1, slide 1 (ES), slide 1 (ZH), slide 2, …