I am using Gnome 2.10 with the metacity window manager. I would like for
my desktop to behave in the following way:

A window is to become active (in that it grabs keyboard input) whenever
the pointer enters it. It, however, is not to be brought to the foreground
until clicked on explicitly. Now here's the catch: It is to be brought to
the foreground only when clicked on its titlebar. Clicking anywhere else
on the window makes it active all right, but leaves it where it was,
possibly partially obscured by other windows.

Anyone know how to do this? The Desktop->Preferences->Windows menu in
Gnome does not seem to enable one to do it.