You can add subfolders to any of your agency's folders in the File Explorer.
Select System > Administration > File Explorer.
In the Directories tree, browse to the folder to which you want to add a subfolder.
Note: This must be an existing agency folder. You cannot add new folders under the Root node. The folders under the Root node are defined in configuration settings.
Right-click the folder and select Create Folder.
Specify a name for the folder in the Folder Name field.