[Plugin: Image Parallax] not working for wordpress 3.4.1

we’d really appreciate if you could upload an youtube demo using some screen recorder at wordpress. using short codes in post was already clear. but i am confused ( and unable to create ) about creating the parallax-type content. let’s assume i have drag-n-dropped / uploaded two iamges in the gallery. then what – to click the “insert gallery” for creating the parallax-type content or not? i am talking about the edit / create parallax module- i am unable to create it. if you don’t click “insert gallery” button the visual editor remains blank. i hope you get my point!