Action pins and activity parameters are diagram elements and appear in the browser. However, there is no code generated for these elements.
at
the bottom of the available Diagram Tools.The pin displays on the border of the action closest to the point that was clicked. The name displays alongside the pin. The default name is pin_n.
at the bottom of the Diagram Tools.The activity parameter displays on the border of the action block closest to the point that was clicked. The name displays inside the activity parameter node. The default name is parameter_n.