Cycle through multiple sensor windows of one image

Hello, I am trying to rapidly analyse different parts of image.snapshot() on the fly, using subsets of the image extracted using sensor.windowing()
However, it seems that I can only apply windowing after taking a new snapshot every time, but I would like the different image extracts to come from the same image.
Is it possible to disable the sensor windowing after each extraction (maybe with a hypothetical sensor.set_windowing(False)?) to be able to take another window of the same image after a previous windowing, or is the rest of the image already lost after I apply windowing?

I finally went for another solution using image.copy and specifying a ROI - I think it does what I want.