Revit :: Applying Project Parameters To Element

How do I apply a Project Parameter (not Shared Parameter) that I created in Manage> Settings > Project Parameters to an existing element.
 
Following the instructions under Creating a Project Parameter in WikiHelp for Revit 2013, I created a Project Parameter called "Equipment ID" (common, text, text) in Manage> Settings > Project Parameters. In the process I clicked the Modify button and assigned it to all Categories by checking all boxes. However, when I opened the family editor for a piece of electrical equipment, selected an element (an extrusion), and then went into the Family Types dialog and clicked Add Parameter, it did not give me the option of adding Project Parameters, only Shared Parameters.
 
WikiHelp, under "Project Parameters", states "Project parameters are parameters you define and then add to multiple categories of elements in a project", but does not say how to "add" them to the element and doesn't direct me to another section that dose.