By default, use these forms to display detailed information when the user clicks on a record in a list or report.
(If the user inhabits a particular role, and the role designates a particular form, that form is used, instead.)
Default Record Detail Form
The default form used to display data for a stream record, when it appears in a list or a report.
Additional Forms available to View As when defining roles, this field specifies other forms that can be used to display the stream record, to show other aspects of the data. When a user is viewing a record, selections made here appear in their dropdown list of available forms.