Refactor / Find Usage for translations id

[sensorario]

I've a lot of $this->get('translator')->trans('some.trans.id') in my web site after 7 month of development. Now I need to reorganize all ids. I expected that this plugin can refactor ids but it is not possible. I think this is a missing feature and could be a great future. Now I've a yml file and, for example is very difficult and slow to find

acme.demobundle.some.stuff.foo.bar

strings because I've to type it by hand if is stored in yml files in this way:

acme:
    demobundle:
        some:
            stuff:
                foo:
                    bar: My translated string

[Haehnchen]

also annoying in my daily usage. also "find usage" would be nice. tried it several times to implement, but without success because of api