(1) Main object

　　　　　　　　　　[Text[Input] ]　　　　　　　　　　　　　　　　　  [Text[Output] ]
                           

220pxAvailable fields of the main object are shown in the list. Users can drag and drop fields from this list onto the canvas.

The fields shown depend on the logged in user's profile permissions in Salesforce.
Only fields that the user has write access to will be able to shown as Text[Input] fields and only fields the user has read access to will be shown as Text[Output] fields.