A little bit of a niche question.
I have created an interactive pdf that opens in full screen mode (which is a mandatory) and in single pages which works well and includes the touch scroll.
One thing that has been requested (and I understand from some users perspective as it's a more traditional approach to page scrolling) is to force/ enable the scroll bars which currently do not exist. This would need to be enabled within the distributed pdf file rather than within the reader's settings.
I am guessing that this may require a snippet of code if it is at all possible.