Change default setting for all users?

Hi!

Do you know how to change the default setting for all users in a 
computer?

More specifically, this computer's mouse does not have middle 
button, so I would like to change the default (for new users and 
all users that does not explicitly changed it) trigger of 
Sawfish Rootmenu to right button. How can I do this?

Thank you!

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    ____  ____  ____  ____ (stephan paul) Arif Sahari Wibowo
   /___  /___/ /___/ /___      http://www.arifsaha.com/
  ____/ /     /   / ____/

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Sawfish ML