Glo How can I koboish epub?

Hi, I have a kobo glo and I found out a post that describe how to use kepub features on epub:

http://dsandrei.blogspot.fr/2012/07/....html#lazymode

unfortunately it is for kobo touch and I can't follow the script instruction, is there a simpler way to use annotations with .kepub.epub files? Maybe a calibre plugin?

Thank you