Unity UI Bypassing a event intercepted by an event handler

Is there a way to let some intercepted events (captured by IPointerClickHandler, for example) continue bubbling up through the hierarchy?
For example, I have two draggable UI windows on the screen. They may overlap. I want to activate a window (put it to foreground) when the user clicks on it. I also want the element that the user clicks on to respond to the event.