Attribute values can be assigned to output functions using either Grid View or the Attributes panel.
How to Assign Function Attribute Values (using Grid View)
1
Select the object for which function Attributes are to be edited. - Alternative : Function Attributes can be edited for all objects by invoking Grid View with nothing selected.
Double-click on the "Ports" folder and then double-click on the port associated with the function whose Attributes are to be edited. Select the desired output function.
4
Choose the Attributes tab within the context panels.
5
On the Attributes panel, highlight the desired Attribute and make the changes using the Attribute's editing field (to the right of the grid).