[web2py] How to add more buttons to form that submits form to different actions ...

[David Marko]

I would like to use concept of shared form 
(http://web2py.com/book/default/chapter/07#Sharing-Forms) and I want to have 
a more submit buttons, each to different action on controller. How can I 
sinmply make a more buttons each submiting form to different action.