Dear Sir, i'm working on OpenERP since starting of my IT career, now it has 4.5 years full time working experience on OpenERP. and i had worked for OpenERP partners and developed and lead the projects of OpenERP customization and implementations, i read your requirements and check the document, i can do modifications as per your requirement, it'll be the custom module when installed, it'll add those fields in the product form in a separate tab, i have done similar work in the past, looking forward to hear from you soon, Regards. Zahir