How to create folders from the web portal
From the Folders view, when you select a folder from the tree and on condition that you have the required permissions, the "New folder" button will appear.
To create a new folder, select its parent folder and then click the "New folder" button.
The "New folder" button will only appear in folders with administrator permissions.
The "New folder" button opens a window where you can enter the name of the folder to be created.
Clicking OK will create the new folder.