Continuous scrolling would be difficult to implement the way Bible Analyzer is presently coded. It would break many of the interactive features. But it would be fairly easy to code the ability to open another window (or MultiWindow) and display a whole book of text. We will look into this for the future.
For now, probably the best way to see multiple chapters is to export the ones of interest to the MultiWindow. There they can be accessed easily and even saved. See this video, https://www.youtube.com/watch?v=oQweysHvqP0