I have an element A with attributes and reference to child element B
I need to customize a property sheet of element A so that when I click on B field it opens another sub property where I can fill in the element B attributes.
Is there any sample code or example on how to do that ?
I don't know of a sample which does exactly what you are looking for, there is a sample with a property sheet which can be found on the Samples page of Welcome. Help/Welcome will open Welcome then go to the Samples page and click on the Property Sheet and Outline sample.