How to make pin numbers visible in OrCAD 9.2?

Pin number visibility in OrCAD 9.2

Colleagues,

When a new custom schematic part is created in OrCAD 9.2 there is a dialog that asks for part properties such as designator, PCB footprint, name etc. On this same dialog there is a check box “Pin Number Visible”. How can I open this dialog for an existing part and change the properties 

In particular, I want to take an existing rotary switch part from the Discrete library, add more pins to it, change the pin numbers and make them visible. I can’t make the pin numbers visible, because “Pin Number Visible” was unchecked, when the part was created by OrCAD staff.

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