There are situations where we need to get a list of all windows, e.g. "close all" or "rearrange". While this can easily done manually when working with a single type of window, it's difficult if we have multiple windows using multiple components (we would have to ensure that we register them all in some kind of registry).

Feature request: Add something like a WindowManager that allows us to access all windows. Perhaps their WindowRefs? Perhaps an addition to WindowContainerService?