Vendor tobe searched on the base of Vendor Account Group

Hi,

I want to search a vendor on the base of their account group of that vendor

Eg. While creating a PO in ME21N for vendor field in F4 option , i want to get the vendor account Group also to simplify my search.

is it possible thru search help customizing or else whether ABAPer help is required.

With Rgds,

Krishna.