One more image which shows how the user interface of planv is
designed (http://basalt.cias.osakafu-u.ac.jp/plan9/Tyrrhena2.gif).

The upper and lower left-hand side images are those shown in the
previous gif image.   Two right-hand side images show how we can
browse files under a directory (upper) and how we can set the view
area of MOLA data (lower).

The yellow area around the munu bar show alternative selection
of manu for that category, which I imaged as a directory.

Have a fan

Kenji