How to refresh the power list ouside the feeder class and the detail compo?

Dear Experts,

I have created a custom power list application using the interface IF_POWL_FEEDER.

In the power list action tab I have created a action button create.

On the click of Create I have opened a popup window(in the same webdynpro component, not in the detail component),

Here, I am not able to refresh the list.

Request you to please suggest

Warm Regards,

Upendra Agrawal