Replicate Me Too component, or any ID-required non-contract component to a custom component

Thank you for your quick answer ! 

I thought that a "Me Too" could be a achieved by creating a Rating with the following rest call : 

rest("/messages/id/MESSAGE_ID/ratings/key/question_metoo/ratings/add?rating.value=0.0")

 As for the non-contract component, we don't need the actual code per se, but the knowledge of what parameter to pass to the component for it to apply to a given Question for example. We would be perfectly happy with just calling the non-contract component with :

<component id="ratings.widget.rating-enum-display" ratingSystemRef="conv:question_metoo"/>

 and adding a parameter for the widget to recognize what message to apply the "Me Too" to.

Do you think it is possible ?

Thanks again for your help :)