Middle click to jump to the clicked point is very common in X11 toolkits to the point where it is considered a "de facto" standard (some applications that imple

Middle click to jump to the clicked point is very common in X11 toolkits to the point where it is considered a "de facto" standard (some applications that implement their own scrollbars, like Firefox, will even use that functionality just on X11 even though technically are able to do that anywhere). On Windows you get the same functionality with Shift+Left Click. You also get to see which applications use Qt since it isn't implemented there :-P.