It is nice to have outline capability in Excel so that we can just
display level 1 and hide all level 2+. But this works for text only--
if I have a photo (inside a frame) stored in a cell which is in
level 2+; if I display level 1, all level 2+ would be hidden except
that photo. In this case, the photo may very likely overlay level 1's
text. That's not what I had in mind, how could I slove this?