The functionality is to let an Editor/marketer to view the submission data by clicking on the Form block on the Landing page. And define how the data will be displayed, i.e., what are the fields shown in the table and the default sorting.

The scenarios are defined in the Form Builder confluence page - https://doc.ez.no/display/PR/eZ+Form+Builder#eZFormBuilder-UserStory4-AsanEditor,Iwanttoviewthesubmissiondataofaform