This diagram is only used to specify graphically a Tuple Type by adding them Fields (represented by Local signal declaration), and a Specification area (only if the Tuple Kind is bundle) to precise the clock relations between the different fields.
To parametrize each of these elements, right-click on any graphical object and select the Property View. For more information, refers to theParametrization of model objects> section (select the Advanced tab, to view the attribute and references of each model object).