[Camino] tweaking the contextual menu?

I'm running Camino 1.1 beta under OS X 10.3.9 (Panther) on a dual G4,
and under 10.4.9 (Tiger) on a G4 iBook.

Is there any way to

a) make Camino bring up the contextual menu when I click-and-hold on a
link, as well as when I control-click? I have a standard Apple
one-button mouse (and a trackpad on the laptop, of course), and
sometimes I want to be able to access the contextual menu with just
one hand, rather than needing one hand on the mouse/trackpad and the
other on the keyboard.

b) add items to the contextual menu? Specifically, I want to add "Open
Link in Background Window."

Thanks!

Shoshanna Green
[email protected]