Scrolling content doesn’t work in PDF. I don’t know where you got that idea that it did, but you may want to read my latest blog post before you continue this project:
Hi BobLevine, thanks...
I got the idea that this could work, because if you can put flash animation and 3d content maybe just maybe we can also use scrolling content in pdf. I just gona have to do it another way.
I´m going to have a look on your blog post.
But you shouldn't use flash in InDesign anyway in modern days at it need to be viewed a Flash Player installed, which is impossible to do so on mobile devices which will lock out any iOS or Android user from your PDFs.