It would be nice to have a more direct way of getting from a Bible that you are reading to a commentary book overview (chapter 0) or a chapter overview (verse 0, for example in Matthew Poole).

What do you suggest?

I am not sure that I have any really viable suggestions. The only thing that I could think of was when you are in Analyze Verse, Commentary, if you tap the commentary label, for example, (ACCB), the popup menu could give as options "book intro," "chapter intro," and "current verse." Or you could put a separate button called "Intro" (or whatever is appropriate) next to the "Commentaries:" label that is above the commentaries and tapping that would give you the three options. If you tap "book intro" it would display the book introduction, if any, for the commentaries that you have in place of the commentary entry for the current verse you are analyzing. If you then tap the "current verse" it would redisplay the commentary entries for the verse that you were analyzing. Sorry - that was the best I could come up with.