How to link an Odoo ORM method with menu without writing a singleline of code ?

I am looking the above answer and found a link , https://www.odoo.com/forum/help-1/question/is-it-possible-to-call-method-on-menu-65980 but i still this is not what i want ,

the scenario is this ,



after much hacking for about half an hour , this is what i found out !
the magic lies here ...

First ,
we need to set up at the Menu ,

and the server action setup is as follow , you should by right , create the server action 1st,


if you put a test code , e.g. print 'i am here' are the module py code , 
if everything goes , well , u will get an extra menu under sales/sales and when you click it
it will directly execute function.