If you are a network admin, you can restore a deleted Manual by following the steps below:
Click Manuals from the main menu in the left.
Click the ellipsis (...) in the bottom-left part of the page.
From the dropdown, select Trash.
From the list, click Restore, seen next to the specific Manual
The deleted Manual will be retained in Trash for 365 days. Admins will be able to restore a Manual and its contents within this period. After 3 days, the Manual will be permanently deleted.