Only possible to see the "root" folder under a EcoStruxure Web Services interface.
EcoStruxure Web Services
An add-on is needed to your Server license to use EcoStruxure Web Services
Note: The EWS add-on option is not required when using EWS to integrate to certain Schneider Electric systems and services. Refer to PA-00349 for details.
Purchase and install the correct add-on.