The partner view has several buttons to display related information, such as "Quotations and Sales". I would like to add a new button to display "Recipient of Quotations and Sales" to display all Quotations/Sales having this partner as their delivery address.

I believe this is a slight modification of the existing "Quotations and Sales" button, but instead of using the "partner_id" database column, it should use "partner_shipping_id".

I have not succeeded in writing a simple addon so far. Can anyone help me with this? I'm using OpenERP 7.0.