When you connect to ADL, the data is "schema-less" (ie there are no field names on the file columns.). Data Lake has a way of presenting multiple files (i.e the data files - there could be multiple.., the json file containing the field definitions, and a manifest file defining the data delimiters) as a single, unified file for processing in Power BI. We should be able to present this unified view to users in Integrator as well.