3D FlipBook - I cannot add a 3d flip book in my page... I don't see any options there relating to 3d flip book... help

I am thinking of buying the Pro option... but before that I want to have a trial with the free version first.

I installed the plugin... uploaded and created a 3d flip pdf (published). But then when I tried to add it to a 'Page'... I cannot find any option to 'add' a 3d flip file. All the media options are audio, media/text, video etc but nothing relating to 3d flip file.. I am stuck here... am I missing anything here?

Your tutorial video always shows an icon re 3d flip file... but I never find such in my 'Add Page' screens....

HELP HELP