Release Product Enhancement

Hi All,

I want to customize the Release Products form in AX 7.To the existing products grid, add columns for the following fields:1.Default order type,2.Purchase order Default site,3.Purchase order Default warehouse...

If the products are being Released, all the fields populated in the grid should be populated in each of the selected companies...How to do this in AX7. using X++ code..?

Thanks in Advance..