Adding a New Change Type to the Part Pop Up Menu

Hi All,

I have created a custom change type (ETAR). I want it to behave like the ECR in that when I press the right mouse button on a part, it gives me an option to "Add Item(s) to Change" option. When I pick this option, a dialog comes up with "Change Type: " drop down. The drop down has values for the OOTB types listed. How do I add my custom change type do this drop down?

Thanks in advance.

Kamran