The Undelete feature enables you to recover a deleted file to the source when File Delete mode is enabled. When you undelete a file, the file will appear as nearline on the source. You can manually retrieve the nearline file either through WCN or on-demand by attempting to open it.
To use the undelete feature, versioning must be enabled.
To undelete a file from a NAS source, you must perform the operation in the shadow copy folder.
In Windows Explorer, right-click the folder containing the file to undelete.
Hover over Wasabi Cloud NAS.
Click Undelete.

WCN undeletes all deleted files in the selected folder as long as they have a version of the file on the bucket.
The Undelete option is disabled once the files have been restored or undeleted.