Deleted folders can and their content be restored using the recycle bin.
The recycle bin can be used in the workspace view of the web application (in the browser).
The recycle bin is one of the main nodes in the navigation area.
recycle bin in the navigation pane of the workspace view
on this page:
Restoring individual folders
Open the recycle bin by clicking the corresponding node in the navigation area.
Open the context menu for the desired folder. Select the "RESTORE" option.
You can use the search field above the content pane to locate the desired folder in the recycle bin.
context-menü in the recycle bin
Restoring multiple folders
Open the recycle bin by clicking the corresponding node in the navigation area.
Check the desired folders in the recycle bin by clicking / tapping them and selecting the "RESTORE" option in the header of the window.
You can use the search field above the content pane to locate the desired folder in the recycle bin.
restoring multiple objects