Scroll the window while I am dragging tasks

When I have so may items in a particular day that the list is longer than my screen space (pretty much every day), I have no easy way to drag a task onto the timeline, which is really frustrating. Please could you make it so that lists automatically scroll when you drag something to edge of the window, so that it's possible to drag & drop when you are dealing with a large number of items? The key need is for scrolling up & down within one day, but left-right scrolling would also be useful for those of us with more rolls than fit on the screen.