How to add ObjectFormProcessorDelegate

Hi.

How can i register my own ObjectFormProcessorDelegate for some windchill OOTB ObjectFormProcessor?

I can't find any example in customization guide.

I need to add some code to run on com.ptc.windchill.enterprise.part.forms.CreatePartAndCADDocFormProcessor.postProcess step.

So i need add my ObjectFormProcessorDelegate to CreatePartAndCADDocFormProcessor.createPartProcessor.

How can i do it?

Thanks.