You can copy all playlists in two different ways.
1. Open the playlist's three-dot menu in the screen preview
2. Select the playlist
You can copy a playlist with the same settings to the screens it is already linked to.
In this case, the original playlist will not change, but a separate copy will be made according to the selected settings.
1. Open the playlist edit view
2. Make the desired changes
3. Save the content as a copy