Run Power table extension functions programmatically

I’ve created a funky way to get a power table to run its configureCell() extension function. When I want it to refresh I open a tiny popup window for an instant and close it. The user doesnt see it and it causes the ui to repaint (apparently) which in turn causes the power table’s configureCell() func to run.

Is there a more elegant way to do this?

(this is in a docked windows client. The main window has the power table and a different window (filters) has the need to run the power table’s configureCell func. There are three main windows that use the same filters window)