select product when redirect to create coupon page.

Hi.
i have a scenario which needed to implement this:
i want when redirect to a create coupon page, auto fill the product field. for example i create 3 button; create coupon for product 1,create coupon for product 2,create coupon for product 3
when user click on the first button, open "create coupon page" and auto selected product 1 in the Product field. how to do that?
is it need write plugin?
if i want implement that in the hikamarket create coupon menu, need customize any php file? maybe i can override and get some queryparam in that php file of create coupon:
public_html/templates/********/html/com_hikamarket/discountmarket/show.php