the map always overrides windows created by me.device.windows.draw(). Tried by placing the TMR/REF window at the same place than the INSET map, whatever the order of windows creation and map display, the map is always set above the window TMR/REF.
using z-index doesn't solve the issue, I haven't found in history the beginning of the issue, but I think this is related with the display.nas reordering for map display.