Call TC PA20 with a defualt infotype

Hi SDN

How can I call TC PA20 (call transaction PA20 and skip first screen) by pressing a button on a z report, with default infotype? For pernr is the Id 'PER' but for the infotype (using F1 / F9) i can see the parameter Id!

Thanks.

Regards,

Maria Jioão Rocha