After F4 selection ,where can i filter the product result table

Question

I have created  F4 help for product search in Web U for extra field
Component:PRD01QR and view:Search Help under context node :SEARCH..
1)After selecting the value from f4,From where can i get the selected value inside the program
2)How can i use this value to filter the product result table
Please-help urgent

Answer 1

I tried the above methods but still cant resolve..
Am able to get the help value and internal table result. but when i put value to my custom field using f4 help and press search it going to this query
OPEN CURSOR WITH HOLD lv_cursor FOR
         SELECT prod~product_guid
                prod~logsys
                prod~product_id
                prod~product_type
                prod~config
                prod~xnosearch
                prod~object_family
                prod~batch_dedicated
                prod~competitor_prod
         FROM  COMM_PRODUCT as prod   INNER JOIN COMM_PR_FRG_REL  as COMM_PR_FRG_REL0  on COMM_PR_FRG_REL0product_guid = prodproduct_guid  AND CO
         CLIENT SPECIFIED
         WHERE
             prod~client      = sy-mandt                  AND
             batch_dedicated  IN gt_batch_dedicated_range AND
             competitor_prod  IN gt_competitor_range      AND
             config           IN gt_config_range          AND
             prod~logsys      IN gt_logsys_range          AND
             object_family    IN gt_object_family_range   AND
             product_id       IN gt_product_id_range      AND
             product_type     IN gt_product_type_range    AND
             (gt_where).
here get_where has value
ZSECTION_SET~ZZ0010 = 'S'
which is my field value.At this point internal table is going blank and search fails.