on the Mazda 5, when pushing the button fully will trigger auto down, which open the window fully.
if pushing the button halfway, it had this 2 step window feature which the window will open for an inch. then stop. if you keep holding the button it will resume opening after a sec or so.
so when i need to open half a window, I need to wait a sec until it resume after it open the first inch. I don't see any purpose for this 2 step and every time when the window stop i would release the button automatically thinking something was trapped (I guess it build into my muscle memory).