To avoid changing the original content, follow these steps:
Click “Add slide” inside the duplicated playlist.
In the library of slides, search for the slide you want to use.
From the slide options, click “Duplicate” (not “Add” directly).
Rename and edit the new slide safely.
Then, click “Add” to insert it into your playlist.
This ensures your slide is an independent copy that won't affect the original one.
You can search slides by name using the search bar in the slide library.
Duplicate only the slides you need to modify. If some are reused as-is, you can keep them shared across playlists.