Buyer group

Hi,

I have created the buyer group with 3 buyers and assign that to item and B/P. After creating requisition I have converted that into quote order.

At the screen of Enter quote order(P4310) when buyer enter his address no. in the Buyer field not able to see that quote order but when he enter the

address no. of buyer group then he can see that quote order.

How could I do the setup so that buyers from that group will able to see the quote order by entering their address no. instead of group's address no.

Thanks and Regards,