Cocos2d-js: add physics to Cocos Studio nodes

Hello,
I am new to Cocos2d but a fairly experienced javascript developer.

I have looked nearly everywhere but I can not find any clear explanation on how to use Cocos Studio to build the scenes, then - after publishing the project - add physics (chipmunk) to the nodes that have been created in the studio; at least not without basically rewriting them (which defies the purpose of Cocos Studio I guess).

It seems such a basic need that I suspect I got something wrong entirely.

An example would be great.