How to callback POWL after popup FPM

Hi Experts,

I add new button on powl result header. When I click the button, popup a new window which created with FPM.

In this popup FPM window, there is a input field and a "OK" button. When I input some value in input field and click "OK" button.

The input value should be related with the POWL query result.

Now the question is, how can i reflesh the powl result without reflesh button.

Thanks & Regards,

Tank