1. Login to your shop
  2. Under SALES CHANNELS, click Online Store, then Themes
  3. Scroll down below to see what other themes are installed aside from the current theme
  4. In this example, Simple is installed. We'll duplicate that.
  5. It should create a new entry: Copy of Simple
  6. (Optional) Rename with the original name together with a suffix. Ex. Simple-Duplicate. This will make it easier to identify when selecting themes from a dropdown.