[AndyL]

I think the percentage of screen height for vertical scroll sounds right. I have always thought the pages should just be treated as a long "scroll of paper" that could be slid up & down regardless of page boundaries. In my situation, the pages I use are a maximum of A4 size/shape and get cropped from there. The A4 aspect on my tablet means a page is always shorter than the height of the display. Cropping means I can have two and sometimes even three pages fitting in the height of the tablet display. So scrolling by a percentage of page size is meaningless.

As mentioned by crashkahuna, an option to use this scroll from finger touches would be good (I don't use a pedal). Personally, if this works how I am imagining, an option to scroll by a display height percentage instead of forward and backward a page may solve many of the anomalies I have seen.

Regards

Andy