Hard to scroll horizontally due to scrollbar placement

When viewing the list of hunks for a revision, or that are currently changed (E.g., in the bottom right window for the Log/History tab), the hunks are aligned vertically, and there is a vertical scrollbar along the right to scroll through them. If one of the hunks has many (contiguous) lines that have changed, and some (of the top lines) are long (horizontally), then a scrollbar will appear to see the full line - but the scrollbar is placed at the bottom of the hunk, which may not be visible when viewing the top lines. One has to scroll down to the bottom of the hunk, move the horizontal scrollbar to the right, and then scroll back up. It would be better to put the horizontal scrollbar at the bottom of the window (i.e., at the same level where the vertical scrollbar is), rather than at the bottom of each hunk.

There is a work-around, which is to scroll horizontally using the keyboard arrow keys.