Use this dialog box when you want to use a custom identifier instead of the default fragment name. In this dialog box, you can view or edit the fragment identifier.Type the SOM expression that identifies the fragment. It should uniquely identify the root node of the fragment content in the fragment file. For example, $template.form.#subform.MyFragment.Specifies the ID value that identifies the fragment. Most IDs are generated in LiveCycle Designer ES. The ID can be any valid XML ID string that is unique in the document that contains it.