Go to the document overview.
Right click on the on the “My Documents” folder on the left side.
Select “Create new folder” from the context menu.
A dialogue box opens where the folder name can be entered.
After clicking on the “Create folder” button, the dialogue disappears.
The folder is created and appears at the left under the “My Documents” folder.
Folders in successive hierarchy levels can be placed accordingly above the respective context menu of a subfolder.