How to mark important cloud backup versions and avoid replacement?
SILVER / GOLD version only keeps up to 7 / 14 auto-backup versions. If more auto backup version has been created, the earliest version will be automatically replaced by the latest version. If you want to avoid important versions being replaced, you can mark them as important by starring them.
To star cloud backup versions, please follow the steps below:
- Tap on the "Backup" button on the bottom left corner of the main screen. Press the "Restore Documents" option.
You can also tap on the "Restore from Cloud Backup" in Settings. 
- Swipe left on the item that you want to mark as important. Tap the "Starred" button.
