This field is used to specify how the web part should identify the sites and lists to include in the SharePoint Data Provider display.
•Selective allows you to select each specific list that you want to include.
•Line of Site enables you to identify a URL and the number of levels below that URL to include in the display. Any sites that exist now or are created in the future within the specified number of levels will be automatically recognized and included in the SharePoint Data Provider display. If you choose Line of Site, the page refreshes and the "List Selection Settings" section is removed from the display.
Did you know… With Selective SharePoint Data Providers, you can reference a list to which your users have read access in a site to which they do not have access. This is because Selective SharePoint Data Providers hard-code the URL of the site and list, and do not check to see if the user has access to the entire site, as Line of Site SharePoint Data Providers do.