Specifies the type of port for placement on a selected shape. If the selected port type requires you to define physical dimensions, a picture of the selected port type displays. The picture contains labeled parameters, such as A, B, C, and so forth, that you can define in the Value column of the grid. If the selected port type requires no user-defined physical dimensions, no picture displays. This option does not display when you edit a nozzle that you have already placed in the model.