Resetting view when hiding detail in outline level
 

Hi,
I have an Excel worksheet which has 4 outline levels (created using the
Subtotals tool). My boss has noticed that when he expands one item at level
2, then expands a sub-set of that at level 3, then closes the level 2 item,
if he then re-opens the level 2 the level 3 item is still expanded. He would
like the view to re-set to hide the level 3 detail when the level 2 item is
closed so it is "clean" when he next expands it. Of course he could do this
by clicking on the '2' on the top left but there are times when he won't want
to close everything. I have hunted through the menus and can't find anything
that might achieve this - any ideas?
Kind regards
Victoria