From layers which are overlayed on the map or Cyclorama you can have tooltips and attribute information.
The attribute info can be shown by the icon in the map or Cyclorama viewer or by clicking on the object.
Both the tooltips and attribute information is managed by the SLD from the layer. If you add your own layers you can manage which fields are shown in the attribute window and tooltip. Read the SLD documentation on the website how to do this.