With a righ/left mouse click it's possible to jump to the next/previous subdirectory.
Other suggestions for the same page:
The help text inconsistently uses the format "<element>" to describe interface elements that are not literal text. You used this format on other help pages as well, but on this page only for "<File list>" and not for "Footer" or "subdirname". You might want to change "Footer" to "<Footer>" and I suggest to change:
into:(1/100)
subdirname
Displays the subdirectory index counting from the top (0=base directory), the total number of subdirectories, and the subdirectory name. If the focused element is visible, its index and name are displayed, otherwise those of the top element.
With a righ/left mouse click it's possible to jump to the next/previous subdirectory.
Note that I also changed "(1/100)" to "(0/100)".(0/100)
<Subdir name>
Shows the subdirectory index counting from the top (0 is base directory) and total count, and subdirectory name.
Reflects the subdirectory of the focused entry if visible, otherwise the subdirectory of the topmost visible entry.
Right-click this area to scroll to the next subdirectory entry, making it the top visible entry. Use left-click to scroll to the previous subdirectory entry.