EEWB business object

Hi Experts,

I am a starter in WebUI. I read a blog - [Enhance CRM views EEWB|http://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/13987]

In above blog in create extension wizard they are giving input for EEW business object and extension type. Assume I have a account overview screen in CRM and I want to add a custom field for this screen. Can you please tell me how to find the EEW business object and extension type for this scenario. Is there some tcode or some table where EEW bus object for different CRM screens in maintained which can be used in EEWB Tcode. Please share your valuable inputs.

- Bharath