To create or modify the fields available in form builder for a Stream, selectField library from the overflow menu () in the Streams section of the app home.
To create a field, select a field type from the menu at the top of the modal.
To modify a field, click the Edit button below the field.
Deleting a field that is currently on your Request form will remove it from the form and may cause changes to the field in integrated components (Sheets).