See the [contributing docs](https://github.com/yeoman/yeoman/blob/master/contributing.md)

Note: We are regularly asked whether we can add or take away features. If a change is good enough to have a positive impact on all users, we are happy to consider it.

If not, `generator-gulp-webapp` is fork-friendly and you can always maintain a custom version which you `npm install && npm link` to continue using via `yo gulp-webapp` or a name of your choosing.