[Newbies] swapMouseButton?

[Kent Loobey]

I want to swap my mouse buttons around so that the 

left      button  is   red    button (world)
middle wheel   is   blue   button (morphic halo)
right    button  is   yellow button (contextual menu)

How can I do this?

I am using Squeak 3.8full on GNU/Linux Kubuntu Gutsy Gibbon (7.10).

Thanks.