#4 jump to viewport when clicking on a window

[The Anarcat]

I'm using a 2x2 virtual desktop here, setup with
sawfish-pager. Very useful, it allows me to have 4
virtual viewports (not desktops, which are "linear" and
directly addressed). When I click on a window in the
window list, the window gets the focus, but if it is in
a different viewport, I still sit in the same viewport
instead of moving to the closed window.

I'd like to see the current viewport change to the
other viewport when I click in a window sitting in
another viewport.