One thing though, you can add these params to the js function:
js('file', ['module'], [params])
but I don't a way to add them (apart from file) through module config.
Basically what I did was I added my own markers, similar to the ones that Fuel_page generates and then I added extra Javascript to call initEditors() to include those markers.
The javascript check I mentioned is on edit_mode.js, initMarkers(), line…