I'd like to convince Gimp not to mess with the z-order of its windows. Me and the window manager are perfectly able to raise a window as I want.
In particular, I'd like to sometimes have the image window on top but Gimp invariably forces the image window to stay below ALL its other windows.
Please note that I don't want a single window, I want separate windows for the different elements of the interface, that I can place where I want.