flip object with physics body

Hey,

it´s been quite a while since this topic has been mentioned in the forums and I just wanted to ask about the current state of this:

I am currently using object.xScale to flip my objects in the other direction but as you may know this does not affect the actual physic body.

The only way I am aware of is to manually re-create the new physic body during runtime which would result in very bad performance especially if there are many enemies on screen. 

So I am asking you, the Community and anyone from Corona, is there any way to flip the physic bodies using something similar to object.xScale yet?

My sprites in the current project are not uniform so I can not place the bodies just in the object´s center.

Thanks,

Max / CineTek